#!/usr/bin/perl
chop($cwd = `pwd`) unless $cwd = $ENV{'PWD'};
$regexp = shift || die "usage: $0 regexp\n";
for $dir (split(/:/,$ENV{'PATH'})) {
    chdir($dir =~ m#^/# ? $dir : "$cwd/$dir") || next;
    opendir(DOT, '.') || next;
    while ($_ = readdir(DOT)) {
	next unless /$regexp/o;
	next unless -f;
	next unless -x _;
	print "$dir/$_\n";
    } 
}