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# Create a new directory and enter it
function mkd() {
mkdir -p "$@" && cd "$@"
}

# 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')"
}

# 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"
}

# Start a PHP server from a directory, optionally specifying the port
# (Requires PHP 5.4.0+.)
function phpserver() {
local port="${1:-4000}"
local ip=$(ipconfig getifaddr en1)
sleep 1 && open "http://${ip}:${port}/" &
php -S "${ip}:${port}"
}

# Get gzipped file size
function gz() {
echo "orig size (bytes): "
cat "$1" | wc -c
echo "gzipped size (bytes): "
gzip -c "$1" | wc -c
}

# Test if HTTP compression (RFC 2616 + SDCH) is enabled for a given URL.
# Send a fake UA string for sites that sniff it instead of using the Accept-Encoding header. (Looking at you, ajax.googleapis.com!)
function httpcompression() {
encoding="$(curl -LIs -H 'User-Agent: Mozilla/5 Gecko' -H 'Accept-Encoding: gzip,deflate,compress,sdch' "$1" | grep '^Content-Encoding:')" && echo "$1 is encoded using ${encoding#* }" || echo "$1 is not using any encoding"
}

# 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)
echo # newline
}

# Decode \x{ABCD}-style Unicode escape sequences
function unidecode() {
perl -e "binmode(STDOUT, ':utf8'); print \"$@\""
echo # newline
}

# Get a character’s Unicode code point
function codepoint() {
perl -e "use utf8; print sprintf('U+%04X', ord(\"$@\"))"
echo # newline
}

# Add note to Notes.app (OS X 10.8)
# Usage: `note 'foo'` or `echo 'foo' | note`
function note() {
local text
if [ -t 0 ]; then # argument
text="$1"
else # pipe
text=$(cat)
fi
body=$(echo "$text" | sed -E 's|$|<br>|g')
osascript >/dev/null <<EOF
tell application "Notes"
tell account "iCloud"
tell folder "Notes"
make new note with properties {name:"$text", body:"$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
}

# Manually remove a downloaded app or file from the quarantine
function unquarantine() {
for attribute in com.apple.metadata:kMDItemDownloadedDate com.apple.metadata:kMDItemWhereFroms com.apple.quarantine; do
xattr -r -d "$attribute" "$@"
done
}
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