Bash positional parametersEdit

Created 3/5/2013, updated 5/18/2017
  • $1, $2...: parameter 1, parameter 2 etc
  • $#: count of params
  • $@: all params
  • $*: same as $@
  • ${@:2}: params 2 through N
  • ${@:2:5}: 5 params, starting at param 2
  • "$@": quoted params 2 through N (ie. "$1" "$2" "$3"...)
  • "$*": quoted params 2 through N, joined using the first character of $IFS (ie. "$1 $2 $3"...)

Related

  • $_: last argument of last command (eg. echo foo && echo $_ prints "foo" twice)

See also