283 lines
7.8 KiB
Bash
283 lines
7.8 KiB
Bash
# Print cyan underlined header
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function header() {
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echo -e "$UNDERLINE$CYAN$1$NOCOLOR"
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}
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# Create a new directory and enter it
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function md() {
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mkdir -p "$@" && cd "$@"
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}
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# Find shorthand
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function f() {
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find . -name "$1" 2>/dev/null
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}
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# Compare original and gzipped file size
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function gz() {
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local origsize=$(wc -c < "$1")
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local gzipsize=$(gzip -c "$1" | wc -c)
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local ratio=$(echo "$gzipsize * 100/ $origsize" | bc -l)
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printf "Original: %d bytes\n" "$origsize"
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printf "Gzipped: %d bytes (%2.2f%%)\n" "$gzipsize" "$ratio"
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}
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# Test if HTTP compression (RFC 2616 + SDCH) is enabled for a given URL.
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# Send a fake UA string for sites that sniff it instead of using the Accept-Encoding header. (Looking at you, ajax.googleapis.com!)
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function httpcompression() {
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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 "$1 is not using any encoding"
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}
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# Show HTTP headers for given URL
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# Usage: headers <URL>
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# https://github.com/rtomayko/dotfiles/blob/rtomayko/bin/headers
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function headers() {
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curl -sv -H "User-Agent: Mozilla/5 Gecko" "$@" 2>&1 >/dev/null |
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grep -v "^\*" |
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grep -v "^}" |
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cut -c3-
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}
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# Escape UTF-8 characters into their 3-byte format
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function escape() {
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printf "\\\x%s" $(printf "$@" | xxd -p -c1 -u)
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echo
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}
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# Get a character’s Unicode code point: £ → \x00A3
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function codepoint() {
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perl -e "use utf8; print sprintf('\x%04X', ord(\"$@\"))"
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echo
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}
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# Remove screenshots from desktop
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function cleandesktop() {
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header "Cleaning desktop..."
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for file in ~/Desktop/Screen\ Shot*.png; do
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unlink "$file"
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done
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echo
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}
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# Extract archives of various types
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function extract() {
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if [ -f $1 ] ; then
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local dir_name=${1%.*} # Filename without extension
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case $1 in
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*.tar.bz2) tar xjf $1 ;;
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*.tar.gz) tar xzf $1 ;;
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*.tar.xz) tar Jxvf $1 ;;
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*.tar) tar xf $1 ;;
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*.tbz2) tar xjf $1 ;;
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*.tgz) tar xzf $1 ;;
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*.bz2) bunzip2 $1 ;;
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*.rar) unrar x $1 $2 ;;
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*.gz) gunzip $1 ;;
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*.zip) unzip -d$dir_name $1 ;;
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*.Z) uncompress $1 ;;
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*) echo "'$1' cannot be extracted via extract()" ;;
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esac
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else
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echo "'$1' is not a valid file"
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fi
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}
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# Print nyan cat
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# https://github.com/steckel/Git-Nyan-Graph/blob/master/nyan.sh
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# If you want big animated version: `telnet miku.acm.uiuc.edu`
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function nyan() {
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echo
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echo -en $RED'-_-_-_-_-_-_-_'
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echo -e $NOCOLOR$BOLD',------,'$NOCOLOR
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echo -en $YELLOW'_-_-_-_-_-_-_-'
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echo -e $NOCOLOR$BOLD'| /\_/\\'$NOCOLOR
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echo -en $GREEN'-_-_-_-_-_-_-'
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echo -e $NOCOLOR$BOLD'~|__( ^ .^)'$NOCOLOR
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echo -en $CYAN'-_-_-_-_-_-_-'
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echo -e $NOCOLOR$BOLD'"" ""'$NOCOLOR
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echo
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}
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# Copy public SSH key to clipboard. Generate it if necessary
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ssh-key() {
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file="$HOME/.ssh/id_rsa.pub"
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if [ ! -f "$file" ]; then
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ssh-keygen -t rsa
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fi
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cat "$file" | c
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echo "Your public key copied to clipboard."
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}
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# Create an SSH key and uploads it to the given host
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# Based on https://gist.github.com/1761938
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ssh-add-host() {
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username=$1
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hostname=$2
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identifier=$3
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if [[ "$identifier" == "" ]] || [[ "$username" == "" ]] || [[ "$hostname" == "" ]]; then
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echo "Usage: ssh-add-host <username> <hostname> <identifier>"
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else
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header "Generating key..."
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if [ ! -f "$HOME/.ssh/$identifier.id_rsa" ]; then
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ssh-keygen -f ~/.ssh/$identifier.id_rsa -C "$USER $(date +'%Y/%m%/%d %H:%M:%S')"
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fi
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if ! grep -Fxiq "host $identifier" "$HOME/.ssh/config"; then
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echo -e "Host $identifier\n\tHostName $hostname\n\tUser $username\n\tIdentityFile ~/.ssh/$identifier.id_rsa" >> ~/.ssh/config
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fi
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header "Uploading key..."
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ssh $identifier 'mkdir -p .ssh && cat >> ~/.ssh/authorized_keys' < ~/.ssh/$identifier.id_rsa.pub
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tput bold; ssh -o PasswordAuthentication=no $identifier true && { tput setaf 2; echo "SSH key added."; } || { tput setaf 1; echo "Failure"; }; tput sgr0
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_ssh_reload_autocomplete
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fi
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}
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# Upload current directory to special directory on my hosting
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function yay() {
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server="locum"
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dir=`basename "$(pwd)"`
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remote="~/projects/yay/$dir"
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url="http://yay.sapegin.me/$dir/"
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tar cp --exclude '.git' --exclude 'node_modules' . | gzip | ssh $server "mkdir -p "$remote"; gzip -cd | tar x -C "$remote""
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echo "Current directory uploaded to $url."
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if command -v pbcopy >/dev/null 2>&1; then
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echo -n "$url" | pbcopy
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echo "URL copied to clipboard."
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fi
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}
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# Find files with Windows line endings (and convert then to Unix in force mode)
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# USAGE: crlf [file] [--force]
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function crlf() {
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local force=
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# Single file
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if [ "$1" != "" ] && [ "$1" != "--force" ]; then
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[ "$2" == "--force" ] && force=1 || force=0
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_crlf_file $1 $force
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return
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fi
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# All files
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[ "$1" == "--force" ] && force=1 || force=0
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for file in $(find . -type f -not -path "*/.git/*" -not -path "*/node_modules/*" | xargs file | grep ASCII | cut -d: -f1); do
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_crlf_file $file $force
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done
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}
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function _crlf_file() {
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grep -q $'\x0D' "$1" && echo "$1" && [ $2 ] && dos2unix "$1"
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}
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# Backup remote MySQL database to ~/Backups/hostname/dbname_YYYY-MM-DD.sql.gz
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# USAGE: mysql-dump <ssh_hostname> <mysql_database> [mysql_username] [mysql_host]
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mysql-dump() {
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local ssh_hostname=$1
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local mysql_database=$2
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local mysql_username=$3
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local mysql_host=$4
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local location="$HOME/Backups"
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local suffix=$(date +'%Y-%m-%d')
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if [[ $ssh_hostname == "" ]] || [[ $mysql_database == "" ]]; then
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echo "Usage: mysql-dump <ssh_hostname> <mysql_database> [mysql_username] [mysql_host]"
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else
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header "Backing up $mysql_database@$ssh_hostname..."
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if [[ $mysql_username != "" ]]; then
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mysql_username="-u $mysql_username -p "
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fi
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if [[ $mysql_host != "" ]]; then
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mysql_host=" -h $mysql_host"
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fi
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# Ensure backup directory
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local backup_dir="$location/$ssh_hostname"
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mkdir -p $backup_dir
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# Give the user a warning if the file already exists
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local basename=$mysql_database"_"$suffix
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local local_filepath="$backup_dir/$basename.sql.gz"
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if [ -f "$local_filepath" ]; then
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echo -e $RED"WARNING: Backup file '$local_filepath' already exists.$NOCOLOR\nOwerwrite? (Y/N)"
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read proceed
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if [[ $proceed != "y" ]]; then
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return
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fi
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fi
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ssh -C $ssh_hostname "mysqldump --opt --compress $mysql_username$mysql_database$mysql_host | gzip -c" > "$local_filepath"
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echo
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echo "Done: $local_filepath"
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fi
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}
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# Save page screenshot to file
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# USAGE: rasterize <URL> <filename>
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# Based on https://github.com/oxyc/dotfiles/blob/master/.bash/commands
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function rasterize() {
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local url="$1"
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local filename="$2"
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if [[ $url == "" ]] || [[ $filename == "" ]]; then
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echo "Usage: rasterize <URL> <filename>"
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else
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header "Rasterizing $url..."
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[[ $url != http* ]] && url="http://$url"
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[[ $filename != *png ]] && filename="$filename.png"
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phantomjs <(echo "
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var page = new WebPage();
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page.viewportSize = { width: 1280 };
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page.open('$url', function (status) {
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if (status !== 'success') {
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console.log('Unable to load the address.');
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phantom.exit();
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}
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else {
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window.setTimeout(function() {
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page.render('$filename');
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phantom.exit();
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}, 1000);
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}
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});
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")
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echo "Screenshot saved to: $filename"
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fi
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}
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# Add note to Notes.app (OS X 10.8)
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# Usage: note "foo" or echo "foo" | note
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function note() {
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local text
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if [ -t 0 ]; then # Argument
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text="$1"
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else # Pipe
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text=$(cat)
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fi
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body=$(echo "$text" | sed -E 's|$|<br>|g')
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osascript >/dev/null <<EOF
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tell application "Notes"
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tell account "iCloud"
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tell folder "Notes"
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make new note with properties {name:"$text", body:"$body"}
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end tell
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end tell
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end tell
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EOF
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}
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# Add special aliases that will copy result to clipboard (escape → escape+)
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for cmd in password hex2hsl hex2rgb escape codepoint; do
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eval "function $cmd+() { $cmd \$@ | c; }"
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done
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