Commands using echo (1,523)

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Find usb device in realtime
Using this command you can track a moment when usb device was attached.

What is my ip?

Create a backup of the file.
It will create a backup of the filename. The advantage is that if you list the folder the backups will be sorted by date. The command works on any unix in bash.

Find out how old a web page is
I used to use the Firefox "View page info" feature a lot to determine how stale the web page I was looking at was. Now that I use mostly Chrome I miss that feature, so here is a command line alternative using wget. The -S says to display the server response, the --spider says to not download any files/pages, just fetch the header. The output goes to stderr, so to grep it you use 2>&1 to combine the stderr stream with stdout, the pipe that to grep for Last-Modified. You can use curl instead if you have it installed, like this: $ curl --head -s http://osswin.sourceforge.net | grep Mod

Resets a terminal that has been messed up by binary input

exec chmod to subfiles
Using `-exec cmd {} +` causes find to build the command using all matching filenames before execution, rather than once per file.

Copy recursivelly files of specific filetypes
Copying only wmv and mpg files recursively from to

find all file larger than 500M

command line Google I'm Feeling Lucky
opens the Google I'm Feeling Lucky result in lynx, the command line browser

Convert images (jpg, png, ...) into a PDF
Converts images (maybe from scans) into a PDF


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