diff --git a/Gopkg.lock b/Gopkg.lock
index b03b1b5..1d5b910 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -120,6 +120,14 @@
   revision = "af06845cf3004701891bf4fdb884bfe4920b3727"
   version = "v1.1.0"
 
+[[projects]]
+  digest = "1:8fd3a15613c7e70cceff3aa03dd57560dba87c4868864e397d5eb2f14addd3f5"
+  name = "github.com/ogier/pflag"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "32a05c62658bd1d7c7e75cbc8195de5d585fde0f"
+  version = "v0.0.1"
+
 [[projects]]
   digest = "1:b2ee62e09bec113cf086d2ce0769efcc7bf79481aba8373fd8f7884e94df3462"
   name = "github.com/pelletier/go-buffruneio"
@@ -295,6 +303,7 @@
     "github.com/gookit/color",
     "github.com/mitchellh/cli",
     "github.com/mitchellh/go-homedir",
+    "github.com/ogier/pflag",
     "gopkg.in/src-d/go-git.v4",
     "gopkg.in/src-d/go-git.v4/plumbing",
   ]
diff --git a/Gopkg.toml b/Gopkg.toml
index 9fc2dfd..931f422 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -48,3 +48,7 @@
 [prune]
   go-tests = true
   unused-packages = true
+
+[[constraint]]
+  name = "github.com/ogier/pflag"
+  version = "0.0.1"
diff --git a/add/add_cmd.go b/add/add_cmd.go
index d0ced2a..1898a4c 100644
--- a/add/add_cmd.go
+++ b/add/add_cmd.go
@@ -1,10 +1,10 @@
 package add
 
 import (
-	"flag"
 	"fmt"
 
 	"github.com/mitchellh/cli"
+	flag "github.com/ogier/pflag"
 	"github.com/tamada/rrh/common"
 )
 
@@ -28,8 +28,8 @@ Help function shows the help message.
 func (add *Command) Help() string {
 	return `rrh add [OPTIONS] <REPOSITORY_PATHS...>
 OPTIONS
-    -g, --group <GROUP>        add repository to RRH database.
-    -r, --repository-id <ID>   specified repository id of the given repository path.
+    -g, --group=<GROUP>        add repository to RRH database.
+    -r, --repository-id=<ID>   specified repository id of the given repository path.
                                Specifying this option fails with multiple arguments.
 ARGUMENTS
     REPOSITORY_PATHS           the local path list of the git repositories.`
@@ -92,10 +92,8 @@ func (add *Command) buildFlagSet(config *common.Config) (*flag.FlagSet, *options
 	var defaultGroup = config.GetValue(common.RrhDefaultGroupName)
 	flags := flag.NewFlagSet("add", flag.ContinueOnError)
 	flags.Usage = func() { fmt.Println(add.Help()) }
-	flags.StringVar(&opt.group, "g", defaultGroup, "target group")
-	flags.StringVar(&opt.group, "group", defaultGroup, "target group")
-	flags.StringVar(&opt.repoID, "r", "", "specifying repository id")
-	flags.StringVar(&opt.repoID, "repository-id", "", "specifying repository id")
+	flags.StringVarP(&opt.group, "group", "g", defaultGroup, "target group")
+	flags.StringVarP(&opt.repoID, "repository-id", "r", "", "specifying repository id")
 	return flags, &opt
 }
 
diff --git a/add/add_test.go b/add/add_test.go
index 37e1451..84c28cb 100644
--- a/add/add_test.go
+++ b/add/add_test.go
@@ -24,8 +24,8 @@ func TestHelpAndSynopsis(t *testing.T) {
 	}
 	if command.Help() != `rrh add [OPTIONS] <REPOSITORY_PATHS...>
 OPTIONS
-    -g, --group <GROUP>        add repository to RRH database.
-    -r, --repository-id <ID>   specified repository id of the given repository path.
+    -g, --group=<GROUP>        add repository to RRH database.
+    -r, --repository-id=<ID>   specified repository id of the given repository path.
                                Specifying this option fails with multiple arguments.
 ARGUMENTS
     REPOSITORY_PATHS           the local path list of the git repositories.` {
@@ -54,7 +54,7 @@ func TestAdd(t *testing.T) {
 		rCheckers   []repositoryChecker
 		relCheckers []relationChecker
 	}{
-		{[]string{"--group", "group2", "../testdata/helloworld"}, 0,
+		{[]string{"--group=group2", "../testdata/helloworld"}, 0,
 			[]groupChecker{{"group2", true}},
 			[]repositoryChecker{{"helloworld", true}},
 			[]relationChecker{{"group2", "helloworld", true}},
@@ -74,12 +74,12 @@ func TestAdd(t *testing.T) {
 			[]repositoryChecker{{"helloworld", true}},
 			[]relationChecker{{"no-group", "helloworld", true}},
 		},
-		{[]string{"--repository-id", "hw", "../testdata/other/helloworld"}, 0,
+		{[]string{"--repository-id=hw", "../testdata/other/helloworld"}, 0,
 			[]groupChecker{},
 			[]repositoryChecker{{"hw", true}},
 			[]relationChecker{{"no-group", "hw", true}},
 		},
-		{[]string{"--repository-id", "fails", "../testdata/other/helloworld", "../testdata/fibonacci"}, 0,
+		{[]string{"--repository-id=fails", "../testdata/other/helloworld", "../testdata/fibonacci"}, 0,
 			[]groupChecker{},
 			[]repositoryChecker{},
 			[]relationChecker{},
diff --git a/clone/clone_cmd.go b/clone/clone_cmd.go
index f5d6505..23daf68 100644
--- a/clone/clone_cmd.go
+++ b/clone/clone_cmd.go
@@ -1,10 +1,10 @@
 package clone
 
 import (
-	"flag"
 	"fmt"
 
 	"github.com/mitchellh/cli"
+	flag "github.com/ogier/pflag"
 	"github.com/tamada/rrh/common"
 )
 
@@ -34,8 +34,8 @@ Help function shows the help message.
 func (clone *Command) Help() string {
 	return `rrh clone [OPTIONS] <REMOTE_REPOS...>
 OPTIONS
-    -g, --group <GROUP>   print managed repositories categorized in the group.
-    -d, --dest <DEST>     specify the destination.
+    -g, --group=<GROUP>   print managed repositories categorized in the group.
+    -d, --dest=<DEST>     specify the destination.
     -v, --verbose         verbose mode.
 ARGUMENTS
     REMOTE_REPOS          repository urls`
@@ -109,12 +109,9 @@ func (clone *Command) buildFlagSets(config *common.Config) (*flag.FlagSet, *opti
 	var options = options{defaultGroup, ".", false}
 	flags := flag.NewFlagSet("clone", flag.ContinueOnError)
 	flags.Usage = func() { fmt.Println(clone.Help()) }
-	flags.StringVar(&options.group, "g", defaultGroup, "belonging group")
-	flags.StringVar(&options.group, "group", defaultGroup, "belonging group")
-	flags.StringVar(&options.dest, "d", destination, "destination")
-	flags.StringVar(&options.dest, "dest", destination, "destination")
-	flags.BoolVar(&options.verbose, "v", false, "verbose mode")
-	flags.BoolVar(&options.verbose, "verbose", false, "verbose mode")
+	flags.StringVarP(&options.group, "group", "g", defaultGroup, "belonging group")
+	flags.StringVarP(&options.dest, "dest", "d", destination, "destination")
+	flags.BoolVarP(&options.verbose, "verbose", "v", false, "verbose mode")
 	return flags, &options
 }
 
diff --git a/clone/clone_test.go b/clone/clone_test.go
index 249b7a7..36fe928 100644
--- a/clone/clone_test.go
+++ b/clone/clone_test.go
@@ -94,7 +94,7 @@ func TestCommand_Run(t *testing.T) {
 func TestCommand_SpecifyingId(t *testing.T) {
 	var dbFile = common.Rollback("../testdata/tmp.json", "../testdata/config.json", func() {
 		var clone, _ = CommandFactory()
-		clone.Run([]string{"-d", "../testdata/newid", "../testdata/helloworld"})
+		clone.Run([]string{"--dest=../testdata/newid", "../testdata/helloworld"})
 		defer cleanup([]string{"../testdata/newid"})
 
 		var config = common.OpenConfig()
@@ -143,8 +143,8 @@ func TestCloneNotGitRepository(t *testing.T) {
 func TestHelpAndSynopsis(t *testing.T) {
 	var helpMessage = `rrh clone [OPTIONS] <REMOTE_REPOS...>
 OPTIONS
-    -g, --group <GROUP>   print managed repositories categorized in the group.
-    -d, --dest <DEST>     specify the destination.
+    -g, --group=<GROUP>   print managed repositories categorized in the group.
+    -d, --dest=<DEST>     specify the destination.
     -v, --verbose         verbose mode.
 ARGUMENTS
     REMOTE_REPOS          repository urls`
diff --git a/export/export_cmd.go b/export/export_cmd.go
index b927d8f..18a65e1 100644
--- a/export/export_cmd.go
+++ b/export/export_cmd.go
@@ -3,7 +3,6 @@ package export
 import (
 	"bytes"
 	"encoding/json"
-	"flag"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -11,6 +10,7 @@ import (
 
 	"github.com/mitchellh/cli"
 	"github.com/mitchellh/go-homedir"
+	flag "github.com/ogier/pflag"
 	"github.com/tamada/rrh/common"
 )
 
diff --git a/export/import_cmd.go b/export/import_cmd.go
index f393480..4aae52e 100644
--- a/export/import_cmd.go
+++ b/export/import_cmd.go
@@ -1,10 +1,10 @@
 package export
 
 import (
-	"flag"
 	"fmt"
 
 	"github.com/mitchellh/cli"
+	flag "github.com/ogier/pflag"
 	"github.com/tamada/rrh/common"
 )
 
@@ -82,8 +82,7 @@ func buildFlagSet(command *ImportCommand) (*flag.FlagSet, *importOptions) {
 	flags.Usage = func() { fmt.Println(command.Help()) }
 	flags.BoolVar(&options.overwrite, "overwrite", false, "overwrite mode")
 	flags.BoolVar(&options.autoClone, "auto-clone", false, "auto clone mode")
-	flags.BoolVar(&options.verbose, "v", false, "verbose mode")
-	flags.BoolVar(&options.verbose, "verbose", false, "verbose mode")
+	flags.BoolVarP(&options.verbose, "verbose", "v", false, "verbose mode")
 	return flags, &options
 }
 
diff --git a/export/import_test.go b/export/import_test.go
index 942031d..b982d00 100644
--- a/export/import_test.go
+++ b/export/import_test.go
@@ -89,14 +89,14 @@ func TestParsingFailOfArgs(t *testing.T) {
 	}{
 		{[]string{}, "too few arguments"},
 		{[]string{"a", "b", "c"}, "too many arguments: [a b c]"},
-		{[]string{"-unknown-option"}, `rrh import [OPTIONS] <DATABASE_JSON>
+		{[]string{"--unknown-option"}, `rrh import [OPTIONS] <DATABASE_JSON>
 OPTIONS
     --auto-clone    clone the repository, if paths do not exist.
     --overwrite     replace the local RRH database to the given database.
     -v, --verbose   verbose mode.
 ARGUMENTS
     DATABASE_JSON   the exported RRH database.
-flag provided but not defined: -unknown-option`},
+unknown flag: --unknown-option`},
 	}
 
 	for _, testcase := range testcases {
diff --git a/fetch/fetch_all_cmd.go b/fetch/fetch_all_cmd.go
index 068c111..aa28855 100644
--- a/fetch/fetch_all_cmd.go
+++ b/fetch/fetch_all_cmd.go
@@ -1,10 +1,10 @@
 package fetch
 
 import (
-	"flag"
 	"fmt"
 
 	"github.com/mitchellh/cli"
+	flag "github.com/ogier/pflag"
 	"github.com/tamada/rrh/common"
 )
 
@@ -26,7 +26,7 @@ Help returns the help message.
 func (fetchAll *AllCommand) Help() string {
 	return `rrh fetch-all [OPTIONS]
 OPTIONS
-    -r, --remote <REMOTE>   specify the remote name. Default is "origin."`
+    -r, --remote=<REMOTE>   specify the remote name. Default is "origin."`
 }
 
 func (fetchAll *AllCommand) validateArguments(args []string) (*options, error) {
@@ -94,7 +94,7 @@ func (fetchAll *AllCommand) parse(args []string) (*options, error) {
 	var options = options{"origin", []string{}}
 	flags := flag.NewFlagSet("fetch-all", flag.ExitOnError)
 	flags.Usage = func() { fmt.Println(fetchAll.Help()) }
-	flags.StringVar(&options.remote, "r", "origin", "remote name")
+	flags.StringVarP(&options.remote, "remote", "r", "origin", "remote name")
 
 	if err := flags.Parse(args); err != nil {
 		return nil, err
diff --git a/fetch/fetch_cmd.go b/fetch/fetch_cmd.go
index 26ad97e..9a8aac4 100644
--- a/fetch/fetch_cmd.go
+++ b/fetch/fetch_cmd.go
@@ -1,10 +1,10 @@
 package fetch
 
 import (
-	"flag"
 	"fmt"
 
 	"github.com/mitchellh/cli"
+	flag "github.com/ogier/pflag"
 	"github.com/tamada/rrh/common"
 )
 
@@ -28,7 +28,7 @@ Help returns the help message of the command.
 func (fetch *Command) Help() string {
 	return `rrh fetch [OPTIONS] [GROUPS...]
 OPTIONS
-    -r, --remote <REMOTE>   specify the remote name. Default is "origin."
+    -r, --remot=<REMOTE>   specify the remote name. Default is "origin."
 ARGUMENTS
     GROUPS                  run "git fetch" command on each repository on the group.
                             if no value is specified, run on the default group.`
@@ -92,8 +92,7 @@ func (fetch *Command) parse(args []string) (*options, error) {
 	var options = options{"origin", []string{}}
 	flags := flag.NewFlagSet("fetch", flag.ExitOnError)
 	flags.Usage = func() { fmt.Println(fetch.Help()) }
-	flags.StringVar(&options.remote, "r", "origin", "remote name")
-	flags.StringVar(&options.remote, "remote", "origin", "remote name")
+	flags.StringVarP(&options.remote, "remote", "r", "origin", "remote name")
 	// flags.StringVar(&options.key, "k", "", "private key path")
 	// flags.StringVar(&options.userName, "u", "", "user name")
 	// flags.StringVar(&options.password, "p", "", "password")
diff --git a/group/group_cmd.go b/group/group_cmd.go
index 4b56bfc..a51c36e 100644
--- a/group/group_cmd.go
+++ b/group/group_cmd.go
@@ -1,10 +1,10 @@
 package group
 
 import (
-	"flag"
 	"fmt"
 
 	"github.com/mitchellh/cli"
+	flag "github.com/ogier/pflag"
 	"github.com/tamada/rrh/common"
 )
 
@@ -50,8 +50,8 @@ func removeCommandFactory() (cli.Command, error) {
 func (gac *addCommand) Help() string {
 	return `rrh group add [OPTIONS] <GROUPS...>
 OPTIONS
-    -d, --desc <DESC>        gives the description of the group.
-    -o, --omit-list <FLAG>   gives the omit list flag of the group.
+    -d, --desc=<DESC>        gives the description of the group.
+    -o, --omit-list=<FLAG>   gives the omit list flag of the group.
 ARGUMENTS
     GROUPS                   gives group names.`
 }
@@ -83,9 +83,9 @@ ARGUMENTS
 func (guc *updateCommand) Help() string {
 	return `rrh group update [OPTIONS] <GROUP>
 OPTIONS
-    -n, --name <NAME>        change group name to NAME.
-    -d, --desc <DESC>        change description to DESC.
-    -o, --omit-list <FLAG>   change omit-list of the group. FLAG must be "true" or "false".
+    -n, --name=<NAME>        change group name to NAME.
+    -d, --desc=<DESC>        change description to DESC.
+    -o, --omit-list=<FLAG>   change omit-list of the group. FLAG must be "true" or "false".
 ARGUMENTS
     GROUP               update target group names.`
 }
@@ -138,10 +138,8 @@ func (gac *addCommand) buildFlagSet() (*flag.FlagSet, *addOptions) {
 	var opt = addOptions{}
 	flags := flag.NewFlagSet("add", flag.ContinueOnError)
 	flags.Usage = func() { fmt.Println(gac.Help()) }
-	flags.StringVar(&opt.desc, "d", "", "description")
-	flags.StringVar(&opt.desc, "desc", "", "description")
-	flags.StringVar(&opt.omit, "o", "", "omit list flag")
-	flags.StringVar(&opt.omit, "omit-list", "", "omit list flag")
+	flags.StringVarP(&opt.desc, "desc", "d", "", "description")
+	flags.StringVarP(&opt.omit, "omit-list", "o", "", "omit list flag")
 	return flags, &opt
 }
 
@@ -191,12 +189,9 @@ func (glc *listCommand) buildFlagSet() (*flag.FlagSet, *listOptions) {
 	var opt = listOptions{}
 	flags := flag.NewFlagSet("list", flag.ContinueOnError)
 	flags.Usage = func() { fmt.Println(glc.Help()) }
-	flags.BoolVar(&opt.desc, "d", false, "show description")
-	flags.BoolVar(&opt.desc, "desc", false, "show description")
-	flags.BoolVar(&opt.repositories, "r", false, "show repositories")
-	flags.BoolVar(&opt.repositories, "repository", false, "show repositories")
-	flags.BoolVar(&opt.nameOnly, "o", false, "show only group names")
-	flags.BoolVar(&opt.nameOnly, "only-groupname", false, "show only group names")
+	flags.BoolVarP(&opt.desc, "desc", "d", false, "show description")
+	flags.BoolVarP(&opt.repositories, "repository", "r", false, "show repositories")
+	flags.BoolVarP(&opt.nameOnly, "only-groupname", "o", false, "show only group names")
 	return flags, &opt
 }
 
@@ -312,12 +307,9 @@ func (grc *removeCommand) buildFlagSet() (*flag.FlagSet, *removeOptions) {
 	var opt = removeOptions{}
 	flags := flag.NewFlagSet("rm", flag.ContinueOnError)
 	flags.Usage = func() { fmt.Println(grc.Help()) }
-	flags.BoolVar(&opt.inquiry, "i", false, "inquiry mode")
-	flags.BoolVar(&opt.verbose, "v", false, "verbose mode")
-	flags.BoolVar(&opt.force, "f", false, "force remove")
-	flags.BoolVar(&opt.inquiry, "inquiry", false, "inquiry mode")
-	flags.BoolVar(&opt.verbose, "verbose", false, "verbose mode")
-	flags.BoolVar(&opt.force, "force", false, "force remove")
+	flags.BoolVarP(&opt.inquiry, "inquiry", "i", false, "inquiry mode")
+	flags.BoolVarP(&opt.verbose, "verbose", "v", false, "verbose mode")
+	flags.BoolVarP(&opt.force, "force", "f", false, "force remove")
 	return flags, &opt
 }
 
@@ -392,12 +384,9 @@ func (guc *updateCommand) buildFlagSet() (*flag.FlagSet, *updateOptions) {
 	var opt = updateOptions{}
 	flags := flag.NewFlagSet("update", flag.ContinueOnError)
 	flags.Usage = func() { fmt.Println(guc.Help()) }
-	flags.StringVar(&opt.newName, "n", "", "specify new group name")
-	flags.StringVar(&opt.newName, "name", "", "specify new group name")
-	flags.StringVar(&opt.desc, "d", "", "specify the description")
-	flags.StringVar(&opt.desc, "desc", "", "specify the description")
-	flags.StringVar(&opt.omitList, "omit-list", "", "set the omit list flag.")
-	flags.StringVar(&opt.omitList, "o", "", "set the omit list flag.")
+	flags.StringVarP(&opt.newName, "name", "n", "", "specify new group name")
+	flags.StringVarP(&opt.desc, "desc", "d", "", "specify the description")
+	flags.StringVarP(&opt.omitList, "omit-list", "o", "", "set the omit list flag.")
 	return flags, &opt
 }
 
diff --git a/group/group_test.go b/group/group_test.go
index 0fd5ef9..6cbc478 100644
--- a/group/group_test.go
+++ b/group/group_test.go
@@ -178,7 +178,7 @@ func TestUpdateGroup(t *testing.T) {
 		gexists    []groupChecker
 		relations  []relation
 	}{
-		{[]string{"update", "-d", "newdesc2", "--name", "newgroup2", "-o", "true", "group2"}, 0,
+		{[]string{"update", "-d", "newdesc2", "--name=newgroup2", "-o", "true", "group2"}, 0,
 			[]groupChecker{{"newgroup2", true, "newdesc2", true}, {"group2", false, "", false}},
 			[]relation{}},
 		{[]string{"update", "-n", "newgroup3", "group3"}, 0,
@@ -296,8 +296,8 @@ func TestHelp(t *testing.T) {
 
 	var gacHelp = `rrh group add [OPTIONS] <GROUPS...>
 OPTIONS
-    -d, --desc <DESC>        gives the description of the group.
-    -o, --omit-list <FLAG>   gives the omit list flag of the group.
+    -d, --desc=<DESC>        gives the description of the group.
+    -o, --omit-list=<FLAG>   gives the omit list flag of the group.
 ARGUMENTS
     GROUPS                   gives group names.`
 
@@ -317,9 +317,9 @@ ARGUMENTS
 
 	var gucHelp = `rrh group update [OPTIONS] <GROUP>
 OPTIONS
-    -n, --name <NAME>        change group name to NAME.
-    -d, --desc <DESC>        change description to DESC.
-    -o, --omit-list <FLAG>   change omit-list of the group. FLAG must be "true" or "false".
+    -n, --name=<NAME>        change group name to NAME.
+    -d, --desc=<DESC>        change description to DESC.
+    -o, --omit-list=<FLAG>   change omit-list of the group. FLAG must be "true" or "false".
 ARGUMENTS
     GROUP               update target group names.`
 
diff --git a/list/list_cmd.go b/list/list_cmd.go
index 202336e..4e4b042 100644
--- a/list/list_cmd.go
+++ b/list/list_cmd.go
@@ -1,10 +1,10 @@
 package list
 
 import (
-	"flag"
 	"fmt"
 
 	"github.com/mitchellh/cli"
+	flag "github.com/ogier/pflag"
 	"github.com/tamada/rrh/common"
 )
 
@@ -230,18 +230,12 @@ func (list *Command) buildFlagSet() (*flag.FlagSet, *options) {
 	var options = options{args: []string{}}
 	flags := flag.NewFlagSet("list", flag.ContinueOnError)
 	flags.Usage = func() { fmt.Println(list.Help()) }
-	flags.BoolVar(&options.all, "A", false, "show all entries")
-	flags.BoolVar(&options.all, "all-entries", false, "show all entries")
-	flags.BoolVar(&options.description, "d", false, "description flag")
-	flags.BoolVar(&options.description, "desc", false, "description flag")
-	flags.BoolVar(&options.localPath, "p", false, "local path flag")
-	flags.BoolVar(&options.localPath, "path", false, "local path flag")
-	flags.BoolVar(&options.remoteURL, "r", false, "remote url flag")
-	flags.BoolVar(&options.remoteURL, "remote", false, "remote url flag")
-	flags.BoolVar(&options.noOmit, "a", false, "no omit repositories")
-	flags.BoolVar(&options.noOmit, "all", false, "no omit repositories")
-	flags.BoolVar(&options.csv, "c", false, "print as csv format")
-	flags.BoolVar(&options.csv, "csv", false, "print as csv format")
+	flags.BoolVarP(&options.all, "all-entries", "A", false, "show all entries")
+	flags.BoolVarP(&options.description, "desc", "d", false, "description flag")
+	flags.BoolVarP(&options.localPath, "path", "p", false, "local path flag")
+	flags.BoolVarP(&options.remoteURL, "remote", "r", false, "remote url flag")
+	flags.BoolVarP(&options.noOmit, "all", "a", false, "no omit repositories")
+	flags.BoolVarP(&options.csv, "csv", "c", false, "print as csv format")
 	flags.BoolVar(&options.repoNameOnly, "only-repositoryname", false, "show only repository names")
 	flags.BoolVar(&options.groupRepoName, "group-repository-form", false, "show group and repository pair form")
 	return flags, &options
diff --git a/move/move_cmd.go b/move/move_cmd.go
index 698f324..308d954 100644
--- a/move/move_cmd.go
+++ b/move/move_cmd.go
@@ -1,11 +1,11 @@
 package move
 
 import (
-	"flag"
 	"fmt"
 	"strings"
 
 	"github.com/mitchellh/cli"
+	flag "github.com/ogier/pflag"
 	"github.com/tamada/rrh/common"
 )
 
@@ -261,8 +261,7 @@ func buildFlagSet(mv *Command) (*flag.FlagSet, *options) {
 	var options = options{false, false, []string{}, ""}
 	flags := flag.NewFlagSet("mv", flag.ContinueOnError)
 	flags.Usage = func() { fmt.Println(mv.Help()) }
-	flags.BoolVar(&options.verbose, "v", false, "verbose mode")
-	flags.BoolVar(&options.verbose, "verbose", false, "verbose mode")
+	flags.BoolVarP(&options.verbose, "verbose", "v", false, "verbose mode")
 	return flags, &options
 }
 
diff --git a/move/move_test.go b/move/move_test.go
index 28c6974..df3c4e7 100644
--- a/move/move_test.go
+++ b/move/move_test.go
@@ -59,7 +59,7 @@ func TestMoveCommand(t *testing.T) {
 		{"group to group", []string{"group1", "group4"}, []relation{
 			{"group4", "repo1", true},
 			{"group1", "repo1", false}}},
-		{"groups to group", []string{"-verbose", "group1", "group3", "group4"}, []relation{
+		{"groups to group", []string{"--verbose", "group1", "group3", "group4"}, []relation{
 			{"group4", "repo1", true},
 			{"group4", "repo2", true},
 			{"group3", "repo2", false},
diff --git a/path/path_cmd.go b/path/path_cmd.go
index c5ab784..e0bd4a7 100644
--- a/path/path_cmd.go
+++ b/path/path_cmd.go
@@ -1,11 +1,11 @@
 package path
 
 import (
-	"flag"
 	"fmt"
 	"strings"
 
 	"github.com/mitchellh/cli"
+	flag "github.com/ogier/pflag"
 	"github.com/tamada/rrh/common"
 )
 
@@ -101,10 +101,8 @@ func (path *Command) buildFlagSet() (*flag.FlagSet, *options) {
 	var options = options{partialMatch: false, args: []string{}}
 	flags := flag.NewFlagSet("path", flag.ContinueOnError)
 	flags.Usage = func() { fmt.Println(path.Help()) }
-	flags.BoolVar(&options.partialMatch, "m", false, "partial match mode")
-	flags.BoolVar(&options.partialMatch, "partial-match", false, "partial match mode")
-	flags.BoolVar(&options.showRepoID, "r", false, "show path only")
-	flags.BoolVar(&options.showRepoID, "show-repository-id", false, "show path only")
+	flags.BoolVarP(&options.partialMatch, "partial-match", "m", false, "partial match mode")
+	flags.BoolVarP(&options.showRepoID, "show-repository-id", "r", false, "show path only")
 	return flags, &options
 }
 
diff --git a/remove/remove_cmd.go b/remove/remove_cmd.go
index 156730c..5ca5249 100644
--- a/remove/remove_cmd.go
+++ b/remove/remove_cmd.go
@@ -1,10 +1,10 @@
 package remove
 
 import (
-	"flag"
 	"fmt"
 
 	"github.com/mitchellh/cli"
+	flag "github.com/ogier/pflag"
 	"github.com/tamada/rrh/common"
 )
 
@@ -75,12 +75,9 @@ func (rm *Command) buildFlagSet() (*flag.FlagSet, *options) {
 	var options = options{false, false, false, []string{}}
 	flags := flag.NewFlagSet("rm", flag.ContinueOnError)
 	flags.Usage = func() { fmt.Println(rm.Help()) }
-	flags.BoolVar(&options.inquiry, "i", false, "inquiry flag")
-	flags.BoolVar(&options.verbose, "v", false, "verbose flag")
-	flags.BoolVar(&options.recursive, "r", false, "recursive flag")
-	flags.BoolVar(&options.inquiry, "inquiry", false, "inquiry flag")
-	flags.BoolVar(&options.verbose, "verbose", false, "verbose flag")
-	flags.BoolVar(&options.recursive, "recursive", false, "recursive flag")
+	flags.BoolVarP(&options.inquiry, "inquiry", "i", false, "inquiry flag")
+	flags.BoolVarP(&options.verbose, "verbose", "v", false, "verbose flag")
+	flags.BoolVarP(&options.recursive, "recursive", "r", false, "recursive flag")
 	return flags, &options
 }
 
diff --git a/repository/repository_cmd.go b/repository/repository_cmd.go
index 53aee7a..23e036b 100644
--- a/repository/repository_cmd.go
+++ b/repository/repository_cmd.go
@@ -1,10 +1,10 @@
 package repository
 
 import (
-	"flag"
 	"fmt"
 
 	"github.com/mitchellh/cli"
+	flag "github.com/ogier/pflag"
 	"github.com/tamada/rrh/common"
 )
 
@@ -77,10 +77,8 @@ func (info *infoCommand) buildFlagSet() (*flag.FlagSet, *infoOptions) {
 	var options = infoOptions{}
 	flags := flag.NewFlagSet("info", flag.ContinueOnError)
 	flags.Usage = func() { fmt.Println(info.Help()) }
-	flags.BoolVar(&options.csv, "c", false, "prints in the csv format.")
-	flags.BoolVar(&options.csv, "csv", false, "prints in the csv format.")
-	flags.BoolVar(&options.color, "G", false, "enables colorized output.")
-	flags.BoolVar(&options.color, "color", false, "enables colorized output.")
+	flags.BoolVarP(&options.csv, "csv", "c", false, "prints in the csv format.")
+	flags.BoolVarP(&options.color, "color", "G", false, "enables colorized output.")
 	flags.BoolVar(&options.noColor, "no-color", false, "no colorized output.")
 	return flags, &options
 }
@@ -220,12 +218,9 @@ func (update *updateCommand) buildFlagSet() (*flag.FlagSet, *updateOptions) {
 	var options = updateOptions{}
 	flags := flag.NewFlagSet("update", flag.ContinueOnError)
 	flags.Usage = func() { fmt.Println(update.Help()) }
-	flags.StringVar(&options.newID, "i", "", "specifies new repository id")
-	flags.StringVar(&options.description, "d", "", "specifies description")
-	flags.StringVar(&options.newPath, "p", "", "specifies new path")
-	flags.StringVar(&options.newID, "id", "", "specifies new repository id")
-	flags.StringVar(&options.description, "desc", "", "specifies description")
-	flags.StringVar(&options.newPath, "path", "", "specifies new path")
+	flags.StringVarP(&options.newID, "id", "i", "", "specifies new repository id")
+	flags.StringVarP(&options.description, "desc", "d", "", "specifies description")
+	flags.StringVarP(&options.newPath, "path", "p", "", "specifies new path")
 	return flags, &options
 }
 
@@ -321,9 +316,9 @@ Note:
 func (update *updateCommand) Help() string {
 	return `rrh repository update [OPTIONS] <REPOSITORY>
 OPTIONS
-    -i, --id <NEWID>     specifies new repository id.
-    -d, --desc <DESC>    specifies new description.
-    -p, --path <PATH>    specifies new path.
+    -i, --id=<NEWID>     specifies new repository id.
+    -d, --desc=<DESC>    specifies new description.
+    -p, --path=<PATH>    specifies new path.
 ARGUMENTS
     REPOSITORY           specifies the repository id.`
 }
diff --git a/repository/repository_test.go b/repository/repository_test.go
index 3a4f118..824fd13 100644
--- a/repository/repository_test.go
+++ b/repository/repository_test.go
@@ -123,7 +123,7 @@ func TestUpdateRepository(t *testing.T) {
 		newRepoID  string
 		wontRepo   *common.Repository
 	}{
-		{[]string{"--id", "newRepo1", "--path", "newPath1", "--desc", "desc1", "repo1"}, 0, "newRepo1", &common.Repository{ID: "newRepo1", Description: "desc1", Path: "newPath1"}},
+		{[]string{"--id=newRepo1", "--path=newPath1", "--desc=desc1", "repo1"}, 0, "newRepo1", &common.Repository{ID: "newRepo1", Description: "desc1", Path: "newPath1"}},
 		{[]string{"-d", "desc2", "repo2"}, 0, "repo2", &common.Repository{ID: "repo2", Description: "desc2", Path: "path2"}},
 		{[]string{"repo4"}, 3, "repo4", nil},                             // unknown repository
 		{[]string{"--invalid-option"}, 1, "never used", nil},             // invalid option
@@ -185,9 +185,9 @@ Note:
 
 	var updateCommandHelp = `rrh repository update [OPTIONS] <REPOSITORY>
 OPTIONS
-    -i, --id <NEWID>     specifies new repository id.
-    -d, --desc <DESC>    specifies new description.
-    -p, --path <PATH>    specifies new path.
+    -i, --id=<NEWID>     specifies new repository id.
+    -d, --desc=<DESC>    specifies new description.
+    -p, --path=<PATH>    specifies new path.
 ARGUMENTS
     REPOSITORY           specifies the repository id.`
 
diff --git a/status/status_cmd.go b/status/status_cmd.go
index f424296..bba40df 100644
--- a/status/status_cmd.go
+++ b/status/status_cmd.go
@@ -1,11 +1,11 @@
 package status
 
 import (
-	"flag"
 	"fmt"
 	"time"
 
 	"github.com/mitchellh/cli"
+	flag "github.com/ogier/pflag"
 	"github.com/tamada/rrh/common"
 	"gopkg.in/src-d/go-git.v4/plumbing"
 )
@@ -69,7 +69,7 @@ OPTIONS
     -b, --branches               show the status of the local branches.
     -r, --remote                 show the status of the remote branches.
     -c, --csv                    print result in csv format.
-    -f, --time-format <FORMAT>   specifies time format. Available value is
+    -f, --time-format=<FORMAT>   specifies time format. Available value is
                                  'relative' ad 'absolute'
 ARGUMENTS
     REPOSITORIES                 target repositories.  If no repository was specified
@@ -163,14 +163,10 @@ func (status *Command) buildFlagSet() (*flag.FlagSet, *options) {
 	var options = options{false, false, false, notSpecified}
 	flags := flag.NewFlagSet("status", flag.ExitOnError)
 	flags.Usage = func() { fmt.Println(status.Help()) }
-	flags.BoolVar(&options.csv, "c", false, "csv format")
-	flags.BoolVar(&options.csv, "csv", false, "csv format")
-	flags.BoolVar(&options.remote, "r", false, "remote branch status")
-	flags.BoolVar(&options.remote, "remote", false, "remote branch status")
-	flags.BoolVar(&options.branch, "b", false, "local branch status")
-	flags.BoolVar(&options.branch, "branches", false, "local branch status")
-	flags.StringVar(&options.format, "time-format", notSpecified, "specifies time format")
-	flags.StringVar(&options.format, "f", notSpecified, "specifies time format")
+	flags.BoolVarP(&options.csv, "csv", "c", false, "csv format")
+	flags.BoolVarP(&options.remote, "remote", "r", false, "remote branch status")
+	flags.BoolVarP(&options.branch, "branches", "b", false, "local branch status")
+	flags.StringVarP(&options.format, "time-format", "f", notSpecified, "specifies time format")
 	return flags, &options
 }