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Validating a file with checksum

Print environment information.
Print environment (system) information using Perl.

List only executables installed by a debian package
Safe for whitespaces in names.

Watch movies in your terminal
requires mplayer

List PCI device with class and vendor/device IDs
This is a quick replacement for lspci if you need to know what's in a given system but pciutils is not installed. You then need something that can look up the IDs from pci.ids if you want the verbose output.

back ssh from firewalled hosts
host B (you) redirects a modem port (62220) to his local ssh. host A is a remote machine (the ones that issues the ssh cmd). once connected port 5497 is in listening mode on host B. host B just do a ssh 127.0.0.1 -p 5497 -l user and reaches the remote host'ssh. This can be used also for vnc and so on.

Debug how files are being accessed by a process
Instead of looking through `lsof` results, use inotifywait!

route output as next command's parameters

Happy Days
This never gets old

Propagate X session cookies on a different user and login as that user
Reads a username from


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