Re: [9fans] walk

[Fco.J.Ballesteros <nemo@plan9.escet.urjc.es>]

there's also this single `walk' script that evaluates arbitrary expressions
on files, like in

;; walk . '~ $f *.c && test -r $f && cp $f /tmp'

its idea is simply to set $f to the file name and evaluate the command for each
file found in the tree. Works fine enough so I didn't bother to replace it.

#!/bin/rc

rfork e

if (~ $#* 0) {
	echo 'usage: walk file [cmd...]' >[1=2]
	exit usage
}

file=$1
shift
if (~ $#* 0)
	cmd='echo $f'
if not
	cmd=$*
cd `{basename -d $file}
exec du -a $file | awk '{print $2}' | while (f=`{read}) { eval $cmd  }