mirror of
https://github.com/ohmybash/oh-my-bash.git
synced 2024-09-21 18:37:09 +00:00
348 lines
12 KiB
Bash
348 lines
12 KiB
Bash
#! bash oh-my-bash.module
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#------------------------------------------------------------------------------
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# Note on copyright (2022-08-23): The contents of this file seems to have been
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# originally introduced in a blog post [1]. The author also put it on Gist
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# [2]. The blog post says "feel free to take whatever", but the license is not
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# explicitly specified. Aliases are moved to general.aliases.sh.
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#
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# [1] Nathaniel Landau, "My Mac OSX Bash Profile",
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# https://natelandau.com/my-mac-osx-bash_profile/, 2013-07-02.
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# [2] https://gist.github.com/natelandau/10654137
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#
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#------------------------------------------------------------------------------
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#
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# Description: This file holds all base BASH functions
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#
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# Sections:
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# 1. Make Terminal Better (remapping defaults and adding functionality)
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# 2. File and Folder Management
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# 3. Searching
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# 4. Process Management
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# 5. Networking
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# 6. System Operations & Information
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# 7. Date & Time Management
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# 8. Web Development
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# 9. <your_section>
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#
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# X. Reminders & Notes
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#
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#------------------------------------------------------------------------------
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# -----------------------------
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# 1. MAKE TERMINAL BETTER
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# -----------------------------
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# mcd: Makes new Dir and jumps inside
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# --------------------------------------------------------------------
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function mcd { mkdir -p -- "$*" ; cd -- "$*" || exit ; }
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# mans: Search manpage given in agument '1' for term given in argument '2' (case insensitive)
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# displays paginated result with colored search terms and two lines surrounding each hit.
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# Example: mans mplayer codec
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# --------------------------------------------------------------------
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function mans { man "$1" | grep -iC2 --color=always "$2" | less ; }
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# showa: to remind yourself of an alias (given some part of it)
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# ------------------------------------------------------------
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function showa { /usr/bin/grep --color=always -i -a1 "$@" ~/Library/init/bash/aliases.bash | grep -v '^\s*$' | less -FSRXc ; }
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# quiet: mute output of a command
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# ------------------------------------------------------------
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function quiet {
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"$*" &> /dev/null &
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}
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# lsgrep: search through directory contents with grep
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# ------------------------------------------------------------
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# shellcheck disable=SC2010
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function lsgrep { ls | grep "$*" ; }
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# banish-cookies: redirect .adobe and .macromedia files to /dev/null
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# ------------------------------------------------------------
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function banish-cookies {
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rm -r ~/.macromedia ~/.adobe
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ln -s /dev/null ~/.adobe
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ln -s /dev/null ~/.macromedia
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}
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# show the n most used commands. defaults to 10
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# ------------------------------------------------------------
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function hstats {
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if [[ $# -lt 1 ]]; then
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NUM=10
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else
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NUM=${1}
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fi
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history | awk '{print $2}' | sort | uniq -c | sort -rn | head -"$NUM"
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}
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# -------------------------------
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# 2. FILE AND FOLDER MANAGEMENT
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# -------------------------------
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function zipf { zip -r "$1".zip "$1" ; } # zipf: To create a ZIP archive of a folder
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# extract: Extract most know archives with one command
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# ---------------------------------------------------------
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function extract {
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if [ -f "$1" ] ; then
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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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*.bz2) bunzip2 "$1" ;;
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*.rar) unrar e "$1" ;;
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*.gz) gunzip "$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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*.zip) unzip "$1" ;;
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*.Z) uncompress "$1" ;;
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*.7z) 7z x "$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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# buf: back up file with timestamp
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# ---------------------------------------------------------
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function buf {
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local filename filetime
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filename=$1
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filetime=$(date +%Y%m%d_%H%M%S)
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cp -a "${filename}" "${filename}_${filetime}"
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}
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# del: move files to hidden folder in tmp, that gets cleared on each reboot
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# ---------------------------------------------------------
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function del {
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mkdir -p /tmp/.trash && mv "$@" /tmp/.trash;
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}
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# mkiso: creates iso from current dir in the parent dir (unless defined)
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# ---------------------------------------------------------
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function mkiso {
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if _omb_util_command_exists mkisofs; then
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if [ -z ${1+x} ]; then
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local isoname=${PWD##*/}
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else
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local isoname=$1
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fi
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if [ -z ${2+x} ]; then
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local destpath=../
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else
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local destpath=$2
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fi
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if [ -z ${3+x} ]; then
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local srcpath=${PWD}
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else
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local srcpath=$3
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fi
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if [ ! -f "${destpath}${isoname}.iso" ]; then
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echo "writing ${isoname}.iso to ${destpath} from ${srcpath}"
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mkisofs -V "${isoname}" -iso-level 3 -r -o "${destpath}${isoname}.iso" "${srcpath}"
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else
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echo "${destpath}${isoname}.iso already exists"
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fi
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else
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echo "mkisofs cmd does not exist, please install cdrtools"
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fi
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}
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# ---------------------------
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# 3. SEARCHING
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# ---------------------------
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function ff { /usr/bin/find . -name "$@" ; } # ff: Find file under the current directory
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# shellcheck disable=SC2145
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function ffs { /usr/bin/find . -name "$@"'*' ; } # ffs: Find file whose name starts with a given string
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# shellcheck disable=SC2145
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function ffe { /usr/bin/find . -name '*'"$@" ; } # ffe: Find file whose name ends with a given string
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function bigfind {
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if [[ $# -lt 1 ]]; then
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echo_warn "Usage: bigfind DIRECTORY"
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return
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fi
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du -a "$1" | sort -n -r | head -n 10
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}
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# ---------------------------
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# 4. PROCESS MANAGEMENT
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# ---------------------------
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# findPid: find out the pid of a specified process
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# -----------------------------------------------------
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# Note that the command name can be specified via a regex
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# E.g. findPid '/d$/' finds pids of all processes with names ending in 'd'
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# Without the 'sudo' it will only find processes of the current user
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# -----------------------------------------------------
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function findPid { lsof -t -c "$@" ; }
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# my_ps: List processes owned by my user:
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# ------------------------------------------------------------
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function my_ps { ps "$@" -u "$USER" -o pid,%cpu,%mem,start,time,bsdtime,command ; }
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# ---------------------------
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# 5. NETWORKING
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# ---------------------------
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# ips: display all ip addresses for this host
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# -------------------------------------------------------------------
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function ips {
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if _omb_util_command_exists ifconfig
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then
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ifconfig | awk '/inet /{ print $2 }'
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elif _omb_util_command_exists ip
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then
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ip addr | grep -oP 'inet \K[\d.]+'
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else
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echo "You don't have ifconfig or ip command installed!"
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fi
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}
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# down4me: checks whether a website is down for you, or everybody
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# -------------------------------------------------------------------
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function down4me {
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curl -s "http://www.downforeveryoneorjustme.com/$1" | sed '/just you/!d;s/<[^>]*>//g'
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}
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# myip: displays your ip address, as seen by the Internet
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# -------------------------------------------------------------------
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function myip {
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res=$(curl -s checkip.dyndns.org | grep -Eo '[0-9\.]+')
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echo -e "Your public IP is: ${_omb_term_bold_green} $res ${_omb_term_normal}"
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}
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# ii: display useful host related informaton
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# -------------------------------------------------------------------
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function ii {
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echo -e "\\nYou are logged on ${_omb_term_brown}$HOST"
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echo -e "\\nAdditionnal information:$NC " ; uname -a
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echo -e "\\n${_omb_term_brown}Users logged on:$NC " ; w -h
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echo -e "\\n${_omb_term_brown}Current date :$NC " ; date
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echo -e "\\n${_omb_term_brown}Machine stats :$NC " ; uptime
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[[ "$OSTYPE" == darwin* ]] && echo -e "\\n${_omb_term_brown}Current network location :$NC " ; scselect
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echo -e "\\n${_omb_term_brown}Public facing IP Address :$NC " ;myip
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[[ "$OSTYPE" == darwin* ]] && echo -e "\\n${_omb_term_brown}DNS Configuration:$NC " ; scutil --dns
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echo
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}
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# ---------------------------------------
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# 6. SYSTEMS OPERATIONS & INFORMATION
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# ---------------------------------------
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# batch_chmod: Batch chmod for all files & sub-directories in the current one
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# -------------------------------------------------------------------
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function batch_chmod {
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echo -ne "${_omb_term_bold_navy}Applying 0755 permission for all directories..."
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(find . -type d -print0 | xargs -0 chmod 0755) &
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spinner
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echo -ne "${_omb_term_normal}"
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echo -ne "${_omb_term_bold_navy}Applying 0644 permission for all files..."
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(find . -type f -print0 | xargs -0 chmod 0644) &
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spinner
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echo -ne "${_omb_term_normal}"
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}
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# usage: disk usage per directory, in Mac OS X and Linux
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# -------------------------------------------------------------------
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function usage {
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if [ "$(uname)" = "Darwin" ]; then
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if [ -n "$1" ]; then
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du -hd 1 "$1"
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else
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du -hd 1
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fi
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elif [ "$(uname)" = "Linux" ]; then
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if [ -n "$1" ]; then
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du -h --max-depth=1 "$1"
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else
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du -h --max-depth=1
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fi
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fi
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}
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# pickfrom: picks random line from file
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# -------------------------------------------------------------------
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function pickfrom {
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local file=$1
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[ -z "$file" ] && reference "$FUNCNAME" && return
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length=$(wc -l < "$file")
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n=$( ($RANDOM \* "$length" / 32768 + 1))
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head -n "$n" "$file" | tail -1
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}
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# passgen: generates random password from dictionary words
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# Note default length of generated password is 4, you can pass it to the command
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# E.g. passgen 15
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# -------------------------------------------------------------------
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# shellcheck disable=SC2046
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# shellcheck disable=SC2005
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# shellcheck disable=SC2034
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# shellcheck disable=SC2086
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function passgen {
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local i pass length=${1:-4}
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pass=$(echo $(for i in $(eval echo "{1..$length}"); do pickfrom /usr/share/dict/words; done))
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echo "With spaces (easier to memorize): $pass"
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echo "Without (use this as the password): $(echo $pass | tr -d ' ')"
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}
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# ---------------------------------------
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# 7. DATE & TIME MANAGEMENT
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# ---------------------------------------
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# ---------------------------------------
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# 8. WEB DEVELOPMENT
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# ---------------------------------------
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function httpHeaders { /usr/bin/curl -I -L "$@" ; } # httpHeaders: Grabs headers from web page
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# httpDebug: Download a web page and show info on what took time
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# -------------------------------------------------------------------
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function httpDebug { /usr/bin/curl "$@" -o /dev/null -w "dns: %{time_namelookup} connect: %{time_connect} pretransfer: %{time_pretransfer} starttransfer: %{time_starttransfer} total: %{time_total}\\n" ; }
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# ---------------------------------------
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# X. REMINDERS & NOTES
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# ---------------------------------------
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# remove_disk: spin down unneeded disk
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# ---------------------------------------
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# diskutil eject /dev/disk1s3
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# to change the password on an encrypted disk image:
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# ---------------------------------------
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# hdiutil chpass /path/to/the/diskimage
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# to mount a read-only disk image as read-write:
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# ---------------------------------------
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# hdiutil attach example.dmg -shadow /tmp/example.shadow -noverify
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# mounting a removable drive (of type msdos or hfs)
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# ---------------------------------------
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# mkdir /Volumes/Foo
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# ls /dev/disk* to find out the device to use in the mount command)
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# mount -t msdos /dev/disk1s1 /Volumes/Foo
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# mount -t hfs /dev/disk1s1 /Volumes/Foo
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# to create a file of a given size: /usr/sbin/mkfile or /usr/bin/hdiutil
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# ---------------------------------------
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# e.g.: mkfile 10m 10MB.dat
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# e.g.: hdiutil create -size 10m 10MB.dmg
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# the above create files that are almost all zeros - if random bytes are desired
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# then use: ~/Dev/Perl/randBytes 1048576 > 10MB.dat
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