Commands by ryanmjacobs (1)

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Colored diff ( via vim ) on 2 remotes files on your local computer.
You can use $ vim scp://[email protected]//file too in a simple case.

Use default value if unassigned
Will use variable value (for variable $my_dir, in this case), an assign a default value if there is none.

Sort a character string
Sorts a character string, using common shell commands.

Creates a symbolic link or overwrites an existing one
-n: dereference the existing link -v: (optional) to be sure of what is being done -f: force the deletion of the existing one -s: creates a symlink Be careful: the destination can also be a file or a directory and it will be overwritten.

Empty a file
The downside of output redirection is that you need permissions. So something like $ > file won't play nicely w/ sudo. You'd need to do something like $ bash -c '> file' instead, you could go w/ $ sudo truncate -s0 file

Install pip with Proxy
Installs pip packages defining a proxy

Show directories in the PATH, one per line
Shorter version.

Attempt an XSS exploit on commandlinefu.com
Mouse around the title of this item, and note that your cookies are being logged to the console. If I were evil, I could instead send everyone's cookies to my site, and then post up-votes on all my submissions using their cookies, and try to delete every other submission, until clfu was completely pwned by me, redirecting people to malware and porn sites, and so on. Update - now fixed.

pdfcount: get number of pages in a PDF file

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"


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