115 lines
3.4 KiB
Bash
115 lines
3.4 KiB
Bash
# 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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# Get gzipped file size
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function gz() {
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echo "Original size (bytes): "
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cat "$1" | wc -c
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echo "Gzipped size (bytes): "
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gzip -c "$1" | wc -c
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}
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# Test if HTTP compression (RFC 2616 + SDCH) is enabled for a given URL.
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# Send a fake UA string for sites that sniff it instead of using the Accept-Encoding header. (Looking at you, ajax.googleapis.com!)
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function httpcompression() {
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encoding="$(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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# 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 # newline
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}
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# Decode \x{ABCD}-style Unicode escape sequences
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function unidecode() {
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perl -e "binmode(STDOUT, ':utf8'); print \"$@\""
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echo # newline
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}
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# Get a character’s Unicode code point
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function codepoint() {
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perl -e "use utf8; print sprintf('U+%04X', ord(\"$@\"))"
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echo # newline
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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 "'$1' is not a valid file"
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fi
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}
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# Print nyan cat
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# https://github.com/steckel/Git-Nyan-Graph/blob/master/nyan.sh
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# If you want big animated version: `telnet miku.acm.uiuc.edu`
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function nyan() {
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e='\033'
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RESET="$e[0m"
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BOLD="$e[1m"
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CYAN="$e[0;96m"
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RED="$e[0;91m"
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YELLOW="$e[0;93m"
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GREEN="$e[0;92m"
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echo
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echo -en $RED'-_-_-_-_-_-_-_'
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echo -e $RESET$BOLD',------,'$RESET
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echo -en $YELLOW'_-_-_-_-_-_-_-'
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echo -e $RESET$BOLD'| /\_/\\'$RESET
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echo -en $GREEN'-_-_-_-_-_-_-'
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echo -e $RESET$BOLD'~|__( ^ .^)'$RESET
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echo -en $CYAN'-_-_-_-_-_-_-'
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echo -e $RESET$BOLD'"" ""'$RESET
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echo
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}
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# Creates 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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add-ssh-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" == "" ]]
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then
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echo "Usage: configure_ssh_host <username> <hostname> <identifier>"
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else
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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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ssh $identifier 'mkdir -p .ssh && cat >> ~/.ssh/authorized_keys' < ~/.ssh/$identifier.id_rsa.pub
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tput bold; ssh -o PasswordAuthentication=no $identifier true && { tput setaf 2; echo "SSH key added."; } || { tput setaf 1; echo "Failure"; }; tput sgr0
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_ssh_load_autocomplete
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fi
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}
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# Adds ~/.ssh/config to the ssh autocomplete
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_ssh_load_autocomplete() {
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complete -W "$(awk '/^\s*Host\s*/ { sub(/^\s*Host /, ""); print; }' ~/.ssh/config)" ssh
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}
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_ssh_load_autocomplete |