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来自「早期freebsd实现」· 代码 · 共 31 行

#!/usr/bin/perl

$| = 1;
if ($#ARGV >= 0) {
    $cmd = join(' ',@ARGV);
}
else {
    print "Command: ";
    $cmd = <stdin>;
    chop($cmd);
    while ($cmd =~ s/\\$//) {
	print "+ ";
	$cmd .= <stdin>;
	chop($cmd);
    }
}
$cwd = `pwd`; chop($cwd);

open(FIND,'find . -type d -print|') || die "Can't run find";

while (<FIND>) {
    chop;
    unless (chdir $_) {
	print stderr "Can't cd to $_\n";
	next;
    }
    print "\t--> ",$_,"\n";
    system $cmd;
    chdir $cwd;
}