Commands using cpp (2)

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Regnerate Exif thumbnail.
Regnerate Exif thumbnail.

Remove security limitations from PDF documents using ghostscript (for Windows)
#4345 also works under windows

Change user, assume environment, stay in current dir
I've used this a number of times troubleshooting user permissions. Instead of just 'su - user' you can throw another hyphen and stay in the original directory.

Sort the size usage of a directory tree by gigabytes, kilobytes, megabytes, then bytes.
Probably only works with GNU du and modern perls.

cpu and memory usage top 10 under Linux
It's like `prstat -t` under Solaris

Create a mirror of a local folder, on a remote server
Create a exact mirror of the local folder "/root/files", on remote server 'remote_server' using SSH command (listening on port 22) (all files & folders on destination server/folder will be deleted)

Perl Simple Webserver
First we accept a socket and fork the server. Then we overload the new socket as a code ref. This code ref takes one argument, another code ref, which is used as a callback. The callback is called once for every line read on the socket. The line is put into $_ and the socket itself is passed in to the callback. Our callback is scanning the line in $_ for an HTTP GET request. If one is found it parses the file name into $1. Then we use $1 to create an new IO::All file object... with a twist. If the file is executable("-x"), then we create a piped command as our IO::All object. This somewhat approximates CGI support. Whatever the resulting object is, we direct the contents back at our socket which is in $_[0].

Download Youtube video with wget!
Nothing special required, just wget, sed & tr!

Get absolut path to your bash-script
Another way of doing it that's a bit clearer. I'm a fan of readable code.

find and delete files smaller than specific size


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