Commands by sphere64 (2)

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Find C/C++ source code comments
This is a naive way of finding source code comments in source code files that use C-like comments: // and /*...*/

Recursively Add Changed Files to Subversion
Extracted from http://www.howtogeek.com/wiki/Recursively_Add_Changed_Files_to_Subversion

A simple way to securely use passwords on the command line or in scripts
In this example, where the users gpg keyring has a password, the user will be interactively prompted for the keyring password. If the keyring has no password, same as above, sans the prompt. Suitable for cron jobs. ~/.gnupg/passwd/http-auth.gpg is the encrypted http auth password, for this particular wget use case. This approach has many use cases. example bash functions: function http_auth_pass() { gpg2 --decrypt ~/.gnupg/passwd/http-auth.gpg 2>/dev/null; } function decrypt_pass() { gpg2 --decrypt ~/.gnupg/passwd/"$1" 2>/dev/null; }

Convert Youtube videos to MP3
youtube-dl has this functionality built in. If you're running an older version of youtube-dl, you can update it using `youtube-dl -U` (although if you have an older version, it probably doesn't download youtube videos anyway.) youtube-dl --help will show you other options that may come in useful.

Move all files between to date
In a folder with many files and folders, you want to move all files where the date is >= the file olderFilesNameToMove and

List only the directories
This command would be useful when it is desirable to list only the directories. 'egrep' chooses only the lines that begin with 'd'.

Get information on your graphics card on linux (such as graphics memory size)
Loop is needed if you have more then one card.

Display BIOS Information

send kernel log (dmesg) notifications to root via cron
this is helpful because dmesg is where i/o errors, etc are logged to... you will also be able to see when the system reboots or someone attaches a thumb drive, etc. don't forget to set yourself up in /etc/aliases to get roots email.

Figure out what shell you're running
short, sweet, and works after sudoing a new shell.


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