Create commands to download all of your Google docs to the current directory.

Create commands to download all of your Picasaweb albums

Install Googlecl (http://code.google.com/p/googlecl/) and authenticate first.

Build an awk array with all commands and then select a random one at the end.

This avoids spawning extra processes for counting with wc or generating random numbers.

Explicitly call /bin/ls to avoid interactions with aliases.

Broaden your knowledge of the utilities available to you in no particular order whatsoever! Then use that knowledge to create more nifty one-liners that you can post here. =p

Takes a random number modulo the number of files in $dir, prints the filename corresponding to that number, and passes it as an argument to man.

When working on a big proeject with SVN, you create quite much files, for now! Can just sit here and type svn add for all of them!

svn status will return a list of all of file which get ?(not add), "M"(Modified), "D"(Deleted)! This code just grep "?" flag, then add it into SVN again!

If you want a sequence that can be plotted, do:

seq 8 | awk '{print "e(" $0 ")" }' | bc -l | awk '{print NR " " $0}'

Other bc functions include s (sine), c (cosine), l (log) and j (bessel). See the man page for details.

Splitting on tags in awk is a handy way to parse html.

Tested on CentOS, Ubuntu, and MacOS.

for when a program is hogging the sound output. finds, and kills. add -9 to the end for wedged processes. add in 'grep ^program' after lsof to filter.

Query the Socrata Open Data API being used by the White House to find any employee's salary using curl, grep and awk.

Change the value of the search parameter (example uses Axelrod) to the name of any White House staffer to see their annual salary.

A Quick variation to the latest commands list with the new-lines skipped. This is faster to read.

I've been using it in a script to build from scratch proxy servers.

'ac' is included in the package 'acct', which is described as "The GNU Accounting utilities for process and login accounting". Other interesting flags are:

* print statistics for a specified user

* print statistics for all the users

With my command, the output is also printed in a sexagesimal, more readable, style.

Validate a file using xmllint. If there are parser errors, edit the file in vim at the line of the first error.

No need for grep, let awk do the match. This will not behave properly if the filenames contains whitespace, which is awk's default field separator.

This should do the same thing and is about 70 chars shorter.

Emits the device names which will be printed by iostat for an LVM volume; doesn't show the names for the underlying devices when snapshots are being used (the -cow and -real devices in /dev/mapper)