387 lines
9.3 KiB
Bash
387 lines
9.3 KiB
Bash
#!/bin/bash
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# Trap RC != 0 and display
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EC() {
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echo -e '\e[1;31m'code $?'\e[m\n'
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}
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trap EC ERR
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# Simple calculator
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calc() {
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local result=""
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result="$(printf "scale=10;$*\n" | bc --mathlib | tr -d '\\\n')"
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# └─ default (when `--mathlib` is used) is 20
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if [[ "$result" == *.* ]]; then
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# improve the output for decimal numbers
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printf "$result" |
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sed -e 's/^\./0./' `# add "0" for cases like ".5"` \
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-e 's/^-\./-0./' `# add "0" for cases like "-.5"`\
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-e 's/0*$//;s/\.$//'; # remove trailing zeros
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else
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printf "$result"
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fi
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printf "\n"
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}
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# Create a new directory and enter it
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mkd() {
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mkdir -p "$@" && cd "$@"
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}
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# cd and list
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cl() {
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local dir="$1"
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local dir="${dir:=$HOME}"
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if [[ -d "$dir" ]]; then
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cd "$dir" >/dev/null; ls -l
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else
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echo "bash: cl: $dir: Directory not found"
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fi
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}
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# Simple Note App
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note () {
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# if file doesn't exist, create it
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if [[ ! -f $HOME/.notes ]]; then
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touch "$HOME/.notes"
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fi
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if ! (($#)); then
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# no arguments, print file
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cat "$HOME/.notes"
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elif [[ "$1" == "-c" ]]; then
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# clear file
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printf "%s" > "$HOME/.notes"
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else
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# add all arguments to file
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printf "%s\n" "$*" >> "$HOME/.notes"
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fi
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}
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todo() {
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if [[ ! -f $HOME/.todo ]]; then
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touch "$HOME/.todo"
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fi
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if ! (($#)); then
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cat "$HOME/.todo"
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elif [[ "$1" == "-l" ]]; then
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nl -b a "$HOME/.todo"
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elif [[ "$1" == "-c" ]]; then
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> $HOME/.todo
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elif [[ "$1" == "-r" ]]; then
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nl -b a "$HOME/.todo"
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eval printf %.0s- '{1..'"${COLUMNS:-$(tput cols)}"\}; echo
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read -p "Type a number to remove: " number
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sed -i ${number}d $HOME/.todo
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else
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printf "%s\n" "$*" >> "$HOME/.todo"
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fi
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}
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# Make a temporary directory and enter it
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tmpd() {
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if [ $# -eq 0 ]; then
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dir=`mktemp -d` && cd $dir
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else
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dir=`mktemp -d -t $1.XXXXXXXXXX` && cd $dir
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fi
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}
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# Create a .tar.gz archive, using `zopfli`, `pigz` or `gzip` for compression
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targz() {
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local tmpFile="${@%/}.tar"
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tar -cvf "${tmpFile}" --exclude=".DS_Store" "${@}" || return 1
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size=$(
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stat -f"%z" "${tmpFile}" 2> /dev/null; # OS X `stat`
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stat -c"%s" "${tmpFile}" 2> /dev/null # GNU `stat`
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)
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local cmd=""
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if (( size < 52428800 )) && hash zopfli 2> /dev/null; then
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# the .tar file is smaller than 50 MB and Zopfli is available; use it
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cmd="zopfli"
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else
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if hash pigz 2> /dev/null; then
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cmd="pigz"
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else
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cmd="gzip"
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fi
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fi
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echo "Compressing .tar using \`${cmd}\`…"
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"${cmd}" -v "${tmpFile}" || return 1
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[ -f "${tmpFile}" ] && rm "${tmpFile}"
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echo "${tmpFile}.gz created successfully."
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}
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# Determine size of a file or total size of a directory
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fs() {
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if du -b /dev/null > /dev/null 2>&1; then
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local arg=-sbh
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else
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local arg=-sh
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fi
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if [[ -n "$@" ]]; then
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du $arg -- "$@"
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else
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du $arg .[^.]* *
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fi
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}
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# Create a data URL from a file
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dataurl() {
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local mimeType=$(file -b --mime-type "$1")
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if [[ $mimeType == text/* ]]; then
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mimeType="${mimeType};charset=utf-8"
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fi
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echo "data:${mimeType};base64,$(openssl base64 -in "$1" | tr -d '\n')"
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}
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# Create a git.io short URL
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gitio() {
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if [ -z "${1}" -o -z "${2}" ]; then
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echo "Usage: \`gitio slug url\`"
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return 1
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fi
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curl -i http://git.io/ -F "url=${2}" -F "code=${1}"
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}
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# Start an HTTP server from a directory, optionally specifying the port
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server() {
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local port="${1:-8000}"
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sleep 1 && open "http://localhost:${port}/" &
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# Set the default Content-Type to `text/plain` instead of `application/octet-stream`
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# And serve everything as UTF-8 (although not technically correct, this doesn’t break anything for binary files)
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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"
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}
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# Compare original and gzipped file size
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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 / $origsize" | bc -l)
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printf "orig: %d bytes\n" "$origsize"
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printf "gzip: %d bytes (%2.2f%%)\n" "$gzipsize" "$ratio"
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}
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# Syntax-highlight JSON strings or files
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# Usage: `json '{"foo":42}'` or `echo '{"foo":42}' | json`
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json() {
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if [ -t 0 ]; then # argument
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python -mjson.tool <<< "$*" | pygmentize -l javascript
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else # pipe
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python -mjson.tool | pygmentize -l javascript
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fi
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}
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# Run `dig` and display the most useful info
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digga() {
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dig +nocmd "$1" any +multiline +noall +answer
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}
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# UTF-8-encode a string of Unicode symbols
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escape() {
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printf "\\\x%s" $(printf "$@" | xxd -p -c1 -u)
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# print a newline unless we’re piping the output to another program
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if [ -t 1 ]; then
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echo ""; # newline
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fi
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}
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# Decode \x{ABCD}-style Unicode escape sequences
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unidecode() {
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perl -e "binmode(STDOUT, ':utf8'); print \"$@\""
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# print a newline unless we’re piping the output to another program
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if [ -t 1 ]; then
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echo ""; # newline
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fi
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}
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# Get a character’s Unicode code point
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codepoint() {
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perl -e "use utf8; print sprintf('U+%04X', ord(\"$@\"))"
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# print a newline unless we’re piping the output to another program
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if [ -t 1 ]; then
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echo ""; # newline
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fi
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}
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# Show all the names (CNs and SANs) listed in the SSL certificate
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# for a given domain
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getcertnames() {
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if [ -z "${1}" ]; then
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echo "ERROR: No domain specified."
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return 1
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fi
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local domain="${1}"
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echo "Testing ${domain}…"
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echo ""; # newline
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local tmp=$(echo -e "GET / HTTP/1.0\nEOT" \
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| openssl s_client -connect "${domain}:443" 2>&1)
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if [[ "${tmp}" = *"-----BEGIN CERTIFICATE-----"* ]]; then
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local certText=$(echo "${tmp}" \
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| openssl x509 -text -certopt "no_header, no_serial, no_version, \
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no_signame, no_validity, no_issuer, no_pubkey, no_sigdump, no_aux")
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echo "Common Name:"
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echo ""; # newline
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echo "${certText}" | grep "Subject:" | sed -e "s/^.*CN=//"
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echo ""; # newline
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echo "Subject Alternative Name(s):"
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echo ""; # newline
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echo "${certText}" | grep -A 1 "Subject Alternative Name:" \
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| sed -e "2s/DNS://g" -e "s/ //g" | tr "," "\n" | tail -n +2
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return 0
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else
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echo "ERROR: Certificate not found."
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return 1
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fi
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}
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# `v` with no arguments opens the current directory in Vim, otherwise opens the
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# given location
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v() {
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if [ $# -eq 0 ]; then
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vim .
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else
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vim "$@"
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fi
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}
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# `o` with no arguments opens the current directory, otherwise opens the given
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# location
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o() {
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if [ $# -eq 0 ]; then
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xdg-open . > /dev/null 2>&1
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else
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xdg-open "$@" > /dev/null 2>&1
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fi
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}
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# `tre` is a shorthand for `tree` with hidden files and color enabled, ignoring
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# the `.git` directory, listing directories first. The output gets piped into
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# `less` with options to preserve color and line numbers, unless the output is
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# small enough for one screen.
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tre() {
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tree -aC -I '.git' --dirsfirst "$@" | less -FRNX
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}
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# Get colors in manual pages
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man() {
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env \
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LESS_TERMCAP_mb=$(printf "\e[1;31m") \
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LESS_TERMCAP_md=$(printf "\e[1;31m") \
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LESS_TERMCAP_me=$(printf "\e[0m") \
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LESS_TERMCAP_se=$(printf "\e[0m") \
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LESS_TERMCAP_so=$(printf "\e[1;44;33m") \
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LESS_TERMCAP_ue=$(printf "\e[0m") \
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LESS_TERMCAP_us=$(printf "\e[1;32m") \
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man "$@"
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}
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# Use feh to nicely view images
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openimage() {
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local types='*.jpg *.JPG *.png *.PNG *.gif *.GIF *.jpeg *.JPEG'
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cd $(dirname "$1")
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local file=$(basename "$1")
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feh -q $types --auto-zoom \
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--sort filename --borderless \
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--scale-down --draw-filename \
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--image-bg black \
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--start-at "$file"
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}
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# get dbus session
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dbs() {
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local t=$1
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if [[ -z "$t" ]]; then
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local t="session"
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fi
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dbus-send --$t --dest=org.freedesktop.DBus \
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--type=method_call --print-reply \
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/org/freedesktop/DBus org.freedesktop.DBus.ListNames
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}
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# check if uri is up
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isup() {
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local uri=$1
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if curl -s --head --request GET "$uri" | grep "200 OK" > /dev/null ; then
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notify-send --urgency=critical "$uri is down"
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else
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notify-send --urgency=low "$uri is up"
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fi
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}
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# get the name of a x window
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xname(){
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local window_id=$1
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if [[ -z $window_id ]]; then
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echo "Please specifiy a window id, you find this with 'xwininfo'"
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return 1
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fi
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local match_string='".*"'
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local match_int='[0-9][0-9]*'
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local match_qstring='"[^"\\]*(\\.[^"\\]*)*"' # NOTE: Adds 1 backreference
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# get the name
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xprop -id $window_id | \
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sed -nr \
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-e "s/^WM_CLASS\(STRING\) = ($match_qstring), ($match_qstring)$/instance=\1\nclass=\3/p" \
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-e "s/^WM_WINDOW_ROLE\(STRING\) = ($match_qstring)$/window_role=\1/p" \
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-e "/^WM_NAME\(STRING\) = ($match_string)$/{s//title=\1/; h}" \
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-e "/^_NET_WM_NAME\(UTF8_STRING\) = ($match_qstring)$/{s//title=\1/; h}" \
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-e '${g; p}'
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}
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# Docker
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d_stop(){
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docker stop $(docker ps -q)
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}
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d_clean(){
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docker rm $(docker ps -q -f status=exited)
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docker rmi $(docker images -q -f dangling=true)
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docker volume rm $(docker volume ls -f dangling=true)
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}
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d_reset(){
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docker stop $(docker ps -q)
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docker rm -f $(docker ps -aq)
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docker rmi -f $(docker images -qa)
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docker volume rm $(docker volume ls -q)
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}
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## Radare2 Container OPS
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d_r2(){
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docker run \
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-ti --rm \
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--cap-add=SYS_PTRACE \
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--name r2 \
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-v ~/RE:/mnt \
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-v ~/.radare2rc:/home/r2/.radare2rc:ro \
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-v ~/.bashrc:/home/r2/.bashrc:ro \
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-v ~/.bash_profile:/home/r2/.bash_profile:ro \
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-v ~/.exports:/home/r2/.exports:ro \
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-v ~/.aliases:/home/r2/.aliases:ro \
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radare/radare2 \
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bash
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}
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d_r2s(){
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docker exec -ti r2 bash
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}
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## Menu-Man
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mman(){
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man -k . | sort | dmenu -l 30 | awk '{print substr($2, 2, length($2) - 2) " " $1}' | xargs -r urxvt -e man
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}
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