Commands using sudo (537)

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Automatically rename tmux window using the current working directory
Adds a function that runs every time the prompt is rendered. The function grabs the CWD from PWD and issues a command to tmux to change the current window

quickly backup or copy a file with bash
This inserts timestamp instead of .bak extension.

Check if a machine is online
PING parameters c 1 limits to 1 pinging attempt q makes the command quiet (or silent mode) /dev/null 2>&1 is to remove the display && echo ONLINE is executed if previous command is successful (return value 0) || echo OFFLINE is executed otherwise (return value of 1 if unreachable or 2 if you're offline yourself). I personally use this command as an alias with a predefined machine name but there are at least 2 improvements that may be done. Asking for the machine name or IP Escaping the output so that it displays ONLINE in green and OFFLINE in red (for instance).

Recursively move folders/files and preserve their permissions and ownership perfectly

Remote screenshot
Say if you're logged into a remote system via ssh and this system has an x window system, but yet you still want a screen shot of what's going on graphically. This will do it for you. :-)

Write comments to your history.
A null operation with the name 'comment', allowing comments to be written to HISTFILE. Prepending '#' to a command will *not* write the command to the history file, although it will be available for the current session, thus '#' is not useful for keeping track of comments past the current session.

Encrypted archive with openssl and tar
Create an AES256 encrypted and compressed tar archive. User is prompted to enter the password. Decrypt with: $ openssl enc -d -aes256 -in | tar --extract --file - --gzip

Lock the hardware eject button of the cdrom
This command will lock the hardware eject button of your cdrom drive. Some uses are: 1: If you have a toddler and has discovered the cdrom button 2: If you are carrying a laptop in a bag or case and don't want it to eject if the button is inadvertently pressed. To unlock the button use: $ eject -i 0

encode image to base64 and copy to clipboard
I use it for embedding images in CSS for Stylish, the Firefox addon. Thought it might be useful to others.

Convert a videos audio track to ogg vorbis.
Assumes you have ffmpeg and oggenc. Similar to other scripts here, but this time outputting to Ogg Vorbis. I added the variable assignment for a nice output name. This is part of an interactive bash script I have with a few little multimedia tasks in it. http://www.dward.us/software/VSAK.sh


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