Thursday, March 15, 2012

Bash trivia trick

If you want to feel smarter than someone else, try this little trick.

Challenge the other person to create a file on the filesystem by sending the shell only 3 characters.

Answer? super simple:


1: >
2: a
3: 'new-line'

now if you do an 'ls' you can see the empty file 'a' was created in the current directory. This is a short way to create an empty file on the local system. Basically what is happening is you are redirecting nothing into a file, since that file didn't exist previously, it created it. Hence, creating an empty file.

Now you can reserve 'touch' for more fancy trickery (timestomping)

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