# Create a new directory and enter it function md() { mkdir -p "$@" && cd "$@" } # Get gzipped file size function gz() { echo "Original 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" } # 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 } # Extract archives of various types function extract() { if [ -f $1 ] ; then local dir_name=${1%.*} # Filename without extension case $1 in *.tar.bz2) tar xjf $1 ;; *.tar.gz) tar xzf $1 ;; *.tar.xz) tar Jxvf $1 ;; *.tar) tar xf $1 ;; *.tbz2) tar xjf $1 ;; *.tgz) tar xzf $1 ;; *.bz2) bunzip2 $1 ;; *.rar) unrar x $1 $2 ;; *.gz) gunzip $1 ;; *.zip) unzip -d$dir_name $1 ;; *.Z) uncompress $1 ;; *) echo "'$1' cannot be extracted via extract()" ;; esac else echo "'$1' is not a valid file" fi } # Print nyan cat # https://github.com/steckel/Git-Nyan-Graph/blob/master/nyan.sh # If you want big animated version: `telnet miku.acm.uiuc.edu` function nyan() { e='\033' RESET="$e[0m" BOLD="$e[1m" CYAN="$e[0;96m" RED="$e[0;91m" YELLOW="$e[0;93m" GREEN="$e[0;92m" echo echo -en $RED'-_-_-_-_-_-_-_' echo -e $RESET$BOLD',------,'$RESET echo -en $YELLOW'_-_-_-_-_-_-_-' echo -e $RESET$BOLD'| /\_/\\'$RESET echo -en $GREEN'-_-_-_-_-_-_-' echo -e $RESET$BOLD'~|__( ^ .^)'$RESET echo -en $CYAN'-_-_-_-_-_-_-' echo -e $RESET$BOLD'"" ""'$RESET echo } # Creates an SSH key and uploads it to the given host # Based on https://gist.github.com/1761938 add-ssh-host() { username=$1 hostname=$2 identifier=$3 if [[ "$identifier" == "" ]] || [[ "$username" == "" ]] || [[ "$hostname" == "" ]] then echo "Usage: configure_ssh_host " else if [ ! -f "$HOME/.ssh/$identifier.id_rsa" ]; then ssh-keygen -f ~/.ssh/$identifier.id_rsa -C "$USER $(date +'%Y/%m%/%d %H:%M:%S')" fi if ! grep -Fxiq "host $identifier" "$HOME/.ssh/config"; then echo -e "Host $identifier\n\tHostName $hostname\n\tUser $username\n\tIdentityFile ~/.ssh/$identifier.id_rsa" >> ~/.ssh/config fi ssh $identifier 'mkdir -p .ssh && cat >> ~/.ssh/authorized_keys' < ~/.ssh/$identifier.id_rsa.pub tput bold; ssh -o PasswordAuthentication=no $identifier true && { tput setaf 2; echo "SSH key added."; } || { tput setaf 1; echo "Failure"; }; tput sgr0 _ssh_load_autocomplete fi } # Adds ~/.ssh/config to the ssh autocomplete _ssh_load_autocomplete() { complete -W "$(awk '/^\s*Host\s*/ { sub(/^\s*Host /, ""); print; }' ~/.ssh/config)" ssh } _ssh_load_autocomplete