Commands by jackslesly19 (0)

  • bash: commands not found

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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.

Converts all windows .URL shortcuts in a directory to linux (gnome) .desktop shortcuts

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

copy hybrid iso images to USB key for booting from it, progress bar and remaining time are displayed while copying

a find and replace within text-based files
using find's exec option instead of a for loop and using sed's -i option for inplace replacement. no need to do the file swap.

Clear filesystem memory cache
Found here: http://ubuntuforums.org/showthread.php?t=589975

Set laptop display brightness
Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

Displays the attempted user name, ip address, and time of SSH failed logins on Debian machines
A variation of a script I found on this site and then slimmed down to just use awk. It displays all users who have attempted to login to the box and failed using SSH. Pipe it to the sort command to see which usernames have the most failed logins.

Create a listing of all possible permissions and their octal representation.

add all files not under version control to repository
This should handle whitespaces well and will not get confused if your filenames have "?" in them


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