Fractalf's cheatsheet

Handy stuff

grep

• grep -B 2 -A 3 foo bar Show 2 lines before and 3 lines after grepping for foo in bar
• grep --color=always foo bar | less -r show foo in colors also when piping to less
• grep -E "(foo|bar)" * find files containing foo or bar (Note: file will be displayed twice)

git

• git diff -w ignore whitespace when comparing line

less

• options
  • -r show "raw" control characters (colors)
• commands
  • g goto top
  • G goto bottom
  • /foo search for foo
  • n next search
  • N previous search

bash/sh

• git grep foo | cut -d : -f 1 | uniq | while read i; do sed -r -i s,foo,bar,g $i; done
  • cut -d delimiter (what char divides the search)
  • cut -f field (what field to get from -d search)
  • uniq filter out duplicates
  • sed -r extended regular expressions
  • sed -i edit files in place

linux

• firefox scroll wheel speed: about:config
  • mousewheel.acceleration.factor: 40
  • mousewheel.acceleration.start: 0
  • browser.backspace_action: 0