linux-confs

scripts and confs that I use in linux/mac environments

For nice colors in bash

• LS_COLORS: wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O $HOME/.dircolors && echo 'eval $(dircolors -b $HOME/.dircolors)' >> $HOME/.bashrc && . $HOME/.bashrc
  • Mac OS X:

    • brew install coreutils

    • in .bash_profile:

      # Required for gnutils without prefix
      PATH="/usr/local/opt/coreutils/libexec/gnubin:$PATH"alias ll="ls -lapF"
      MANPATH="/usr/local/opt/coreutils/libexec/gnuman:$MANPATH"
      
      [[ -s ~/.bashrc ]] && source ~/.bashrc
      
      alias ls="ls --color=always" 
      alias grep="grep --color=always"
      alias egrep="egrep --color=always"
      

Adding your public key to a new ssh host

• ssh-copy-id user@host
• cat <public-key-file> | ssh user@host "mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys

Bash scripts

• start them with:

  #!/bin/bash
  set -euo pipefail
  trap "echo 'error: Script failed: see failed command above'" ERR
  

• fallback-to-default-if-unset with: myVar=${1:-defaultValue}

Big bash history

export HISTCONTROL=ignoredups:erasedups # no duplicate entries export HISTSIZE=100000 # big big history export HISTFILESIZE=100000 # big big history shopt -s histappend # append to history, don't overwrite it

Bash mastery tips

• https://github.com/jlevy/the-art-of-command-line