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# Create a new directory and enter it
function mkd() {
mkdir -p "$@" && cd "$@"
}
# Create a .tar.gz archive, using `zopfli`, `pigz` or `gzip` for compression
function targz() {
local tmpFile="${@%/}.tar"
tar -cvf "${tmpFile}" --exclude=".DS_Store" "${@}" || return 1
size=$(
stat -f"%z" "${tmpFile}" 2> /dev/null; # OS X `stat`
stat -c"%s" "${tmpFile}" 2> /dev/null # GNU `stat`
)
local cmd=""
if (( size < 52428800 )) && hash zopfli 2> /dev/null; then
# the .tar file is smaller than 50 MB and Zopfli is available; use it
cmd="zopfli"
else
if hash pigz 2> /dev/null; then
cmd="pigz"
else
cmd="gzip"
fi
fi
echo "Compressing .tar using \`${cmd}\`…"
"${cmd}" -v "${tmpFile}" || return 1
[ -f "${tmpFile}" ] && rm "${tmpFile}"
echo "${tmpFile}.gz created successfully."
}
# Determine size of a file or total size of a directory
function fs() {
if du -b /dev/null > /dev/null 2>&1; then
local arg=-sbh
else
local arg=-sh
fi
if [[ -n "$@" ]]; then
du $arg -- "$@"
else
du $arg .[^.]* *
fi
}
# Use Git’s colored diff when available
hash git &>/dev/null
if [ $? -eq 0 ]; then
function diff() {
git diff --no-index --color-words "$@"
}
fi
# Create a data URL from a file
function dataurl() {
local mimeType=$(file -b --mime-type "$1")
if [[ $mimeType == text/* ]]; then
mimeType="${mimeType};charset=utf-8"
fi
echo "data:${mimeType};base64,$(openssl base64 -in "$1" | tr -d '\n')"
}
# Create a git.io short URL
function gitio() {
if [ -z "${1}" -o -z "${2}" ]; then
echo "Usage: \`gitio slug url\`"
return 1
fi
curl -i http://git.io/ -F "url=${2}" -F "code=${1}"
}
# Start an HTTP server from a directory, optionally specifying the port
function server() {
local port="${1:-8000}"
sleep 1 && open "http://localhost:${port}/" &
# Set the default Content-Type to `text/plain` instead of `application/octet-stream`
# And serve everything as UTF-8 (although not technically correct, this doesn’t break anything for binary files)
python -c $'import SimpleHTTPServer;\nmap = SimpleHTTPServer.SimpleHTTPRequestHandler.extensions_map;\nmap[""] = "text/plain";\nfor key, value in map.items():\n\tmap[key] = value + ";charset=UTF-8";\nSimpleHTTPServer.test();' "$port"
}
# Compare original and gzipped file size
function gz() {
local origsize=$(wc -c < "$1")
local gzipsize=$(gzip -c "$1" | wc -c)
local ratio=$(echo "$gzipsize * 100/ $origsize" | bc -l)
printf "orig: %d bytes\n" "$origsize"
printf "gzip: %d bytes (%2.2f%%)\n" "$gzipsize" "$ratio"
}
# Syntax-highlight JSON strings or files
# Usage: `json '{"foo":42}'` or `echo '{"foo":42}' | json`
function json() {
if [ -t 0 ]; then # argument
python -mjson.tool <<< "$*" | pygmentize -l javascript
else # pipe
python -mjson.tool | pygmentize -l javascript
fi
}
# All the dig info
function digga() {
dig +nocmd "$1" any +multiline +noall +answer
}
# Escape UTF-8 characters into their 3-byte format
function escape() {
printf "\\\x%s" $(printf "$@" | xxd -p -c1 -u)
# print a newline unless we’re piping the output to another program
if [ -t 1 ]; then
echo # newline
fi
}
# Decode \x{ABCD}-style Unicode escape sequences
function unidecode() {
perl -e "binmode(STDOUT, ':utf8'); print \"$@\""
# print a newline unless we’re piping the output to another program
if [ -t 1 ]; then
echo # newline
fi
}
# Get a character’s Unicode code point
function codepoint() {
perl -e "use utf8; print sprintf('U+%04X', ord(\"$@\"))"
# print a newline unless we’re piping the output to another program
if [ -t 1 ]; then
echo # newline
fi
}
# Show all the names (CNs and SANs) listed in the SSL certificate
# for a given domain
function getcertnames() {
if [ -z "${1}" ]; then
echo "ERROR: No domain specified."
return 1
fi
local domain="${1}"
echo "Testing ${domain}…"
echo # newline
local tmp=$(echo -e "GET / HTTP/1.0\nEOT" \
| openssl s_client -connect "${domain}:443" 2>&1);
if [[ "${tmp}" = *"-----BEGIN CERTIFICATE-----"* ]]; then
local certText=$(echo "${tmp}" \
| openssl x509 -text -certopt "no_header, no_serial, no_version, \
no_signame, no_validity, no_issuer, no_pubkey, no_sigdump, no_aux");
echo "Common Name:"
echo # newline
echo "${certText}" | grep "Subject:" | sed -e "s/^.*CN=//";
echo # newline
echo "Subject Alternative Name(s):"
echo # newline
echo "${certText}" | grep -A 1 "Subject Alternative Name:" \
| sed -e "2s/DNS://g" -e "s/ //g" | tr "," "\n" | tail -n +2
return 0
else
echo "ERROR: Certificate not found.";
return 1
fi
}
# Add note to Notes.app (OS X 10.8)
# Usage: `note 'title' 'body'` or `echo 'body' | note`
# Title is optional
function note() {
local title
local body
if [ -t 0 ]; then
title="$1"
body="$2"
else
title=$(cat)
fi
osascript >/dev/null <<EOF
tell application "Notes"
tell account "iCloud"
tell folder "Notes"
make new note with properties {name:"$title", body:"$title" & "<br><br>" & "$body"}
end tell
end tell
end tell
EOF
}
# Add reminder to Reminders.app (OS X 10.8)
# Usage: `remind 'foo'` or `echo 'foo' | remind`
function remind() {
local text
if [ -t 0 ]; then
text="$1" # argument
else
text=$(cat) # pipe
fi
osascript >/dev/null <<EOF
tell application "Reminders"
tell the default list
make new reminder with properties {name:"$text"}
end tell
end tell
EOF
}
# `o` with no arguments opens current directory, otherwise opens the given
# location
function o() {
if [ $# -eq 0 ]; then
open .
else
open "$@"
fi
}
# `tre` is a shorthand for `tree` with hidden files and color enabled, ignoring
# the `.git` directory, listing directories first. The output gets piped into
# `less` with options to preserve color and line numbers, unless the output is
# small enough for one screen.
function tre() {
tree -aC -I '.git|node_modules|bower_components' --dirsfirst "$@" | less -FRNX
}
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