examples/functions/xfind.bash

   1 #! /bin/bash
   2 #From: kaz@cafe.net (Kaz Kylheku)
   3 #Newsgroups: comp.unix.shell
   4 #Subject: Why not roll your own @#$% find! (was: splitting directory off from filename)
   5 #Message-ID: <6n1117$tp1@espresso.cafe.net>
   6 #Date: Fri, 26 Jun 1998 20:47:34 GMT
   7
   8 # $1 = dirname, $2 = pattern, optional $3 = action
   9 xfind()
  10 {
  11         local x
  12         local dir="$1"
  13
  14         # descend into specified directory
  15
  16         builtin cd -L "$1" || {
  17                 echo "${FUNCNAME}: cannot change dir to $1" >&2
  18                 return 1
  19         }
  20
  21         #
  22         # default action is to print the filename
  23         #
  24         if [ -n "$3" ]; then
  25                 action="$3"
  26         else
  27                 action='printf -- "%s\n"'
  28         fi
  29
  30         # process ordinary files that match pattern
  31
  32         for x in $2 ; do
  33                 if [ -f "$x" ] ; then
  34                         eval "$action" "$x"
  35                 fi
  36         done
  37
  38         # now descend into subdirectories, avoiding symbolic links
  39         # and directories that start with a period.
  40
  41         for x in * ; do
  42                 if [ -d "$x" ] && [ ! -L "$x" ] ; then
  43                         $FUNCNAME "$x" "$2" "$action"
  44                 fi
  45         done
  46
  47         # finally, pop back up
  48
  49         builtin cd -L ..
  50 }
  51
  52 #xfind "$@"