29 lines
977 B
Perl
29 lines
977 B
Perl
|
#!/usr/bin/perl
|
||
|
|
# This is used if the RANDIMAGEFILE switch does not work so instead of:
|
||
|
|
# xlock -imagefile [ DIRECTORY | FILE ] [other xlock options]
|
||
|
|
# try
|
||
|
|
# randimagefile.pl [DIRECTORY | FILE] [other xlock options]
|
||
|
|
# By the way the typical other xlock options that would be used here are
|
||
|
|
# -mode [image | puzzle] -install
|
||
|
|
|
||
|
|
local($file) = shift(@ARGV);
|
||
|
|
if ($file eq "") {
|
||
|
|
print "\nUsage: $0 [DIRECTORY | FILE] [other xlock options]\n";
|
||
|
|
print "\tother xlock options typically are: -mode [image | puzzle] -install\n";
|
||
|
|
exit 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
getrandfile();
|
||
|
|
#printf "xlock -imagefile $file @ARGV\n";
|
||
|
|
system "xlock -imagefile $file @ARGV";
|
||
|
|
|
||
|
|
sub getrandfile {
|
||
|
|
if (-d $file) { # OK so its not really a file :)
|
||
|
|
opendir(DIR, $file) || die "Can not open $file";
|
||
|
|
local(@filenames) = grep(!/^\.\.?$/, readdir(DIR)); # ls but avoid . && ..
|
||
|
|
closedir(DIR);
|
||
|
|
srand(time); # use time|$$ if security involved
|
||
|
|
$file = splice(@filenames, rand @filenames, 1); # pick one
|
||
|
|
}
|
||
|
|
}
|