Merge pull request #113 from xushiwei/q

gsh demo

.gitignore

@@ -23,3 +23,6 @@ _testmain.go
 *.exe
 *.test
 *.prof
+
+testgsh*
+gop_autogen*.go

gsh/README.md

@@ -13,7 +13,7 @@ Yes, now you can write `shell script` in Go+. It supports all shell commands.
 
 ## Usage
 
-First, let's create a file named `./example.gsh` and write the following code:
+First, let's create a file named [example.gsh](demo/hello/example.gsh) and write the following code:
 
 ```coffee
 mkdir "testgsh"
@@ -89,10 +89,11 @@ exec "GOOS=linux GOARCH=amd64 go install ."
 
 ### Retrieve environment variables
 
-You can get the value of an environment variable through `${XXX}`. For example:
+You can get the value of an environment variable through `${XXX}` or `$XXX`. For [example](demo/envvar/example.gsh):
 
 ```coffee
-ls "${HOME}"
+echo ${HOME}
+ls $HOME
 ```
 
 You can also use `exec` command through `$XXX`:

gsh/demo/envvar/example.gsh

@@ -0,0 +1,2 @@
+echo ${HOME}
+ls $HOME

gsh/demo/example/example.gsh

@@ -0,0 +1,23 @@
+type file struct {
+	name  string
+	fsize int
+}
+
+mkdir! "testgsh"
+
+mkdir "testgsh2"
+lastErr!
+
+mkdir "testgsh3"
+if lastErr != nil {
+	panic lastErr
+}
+
+capout => { ls }
+println output.fields
+
+capout => { ls "-l" }
+files := [file{flds[8], flds[4].int!} for e <- output.split("\n") if flds := e.fields; flds.len > 2]
+println files
+
+rmdir "testgsh", "testgsh2", "testgsh3"

gsh/demo/exec/example.gsh

@@ -0,0 +1,3 @@
+exec "go", "version"
+exec "ls $HOME"
+exec "mkdir testgsh"

gsh/demo/hello/example.gsh

@@ -0,0 +1 @@
+mkdir "testgsh"