Commands by punamkapor (0)

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Find the annual salary of any White House staffer.
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.

Download Youtube video with wget!
Nothing special required, just wget, sed & tr!

list files recursively by size

Are there any words in the English language that use at least half of the alphabet without repeating any letters?
This is the most straightforward approach: first regexp limits dictionary file to words with thirteen or more characters, second regexp discards any words that have a letter repeated. (Bonus challenge: Try doing it in a single regexp!)

Prepend a text to a file.
Prepend text to a file. It doen't need temporary files, ed or sed.

SSH tunneling self-connection
- port 8080 on localhost will be a SOCKSv5 proxy - at localhost:localport1 you will be connected to the external source server1:remoteport1 and at bind_address2:localport2 to server2:remoteport2 - you will be using only IPv4 and arcfour/blowfish-cbc, in order to speed up the tunnel - if you lose the connection, autossh will resume it at soon as possible - the tunnel is here a background process, wiithout any terminal window open

Find Duplicate Files (based on size first, then MD5 hash)
If you have the fdupes command, you'll save a lot of typing. It can do recursive searches (-r,-R) and it allows you to interactively select which of the duplicate files found you wish to keep or delete.

Output a SSL certificate start or end date
A quick and simple way of outputting the start and end date of a certificate, you can simply use 'openssl x509 -in xxxxxx.crt -noout -enddate' to output the end date (ex. notAfter=Feb 01 11:30:32 2009 GMT) and with the date command you format the output to an ISO format. For the start date use the switch -startdate and for end date use -enddate.

list block devices
Shows all block devices in a tree with descruptions of what they are.

replace spaces in filenames with underscores
This command will replace all the spaces in all the filenames of the current directory with underscores. There are other commands that do this here, but this one is the easiest and shortest.

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