Commands by cryptology_codes (3)

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Tired of switching between proxy and no proxy? here's the solution.
Replace 10.0.0.0/8 with your largest local subnet. replace 10.1.1.123:3128 with your proxy information.. Note this only works with a proxy server configured for passive setup.. Now your firefox transparently proxy's stuff destined outside your network.. and Doesn't proxy stuff inside your network. as well as all your other favorite web applications. curl, wget, aria2 ect.

parrallel execution of a command on remote hosts by ssh or rsh or ...
parrallel execution of a command on remote host by ssh or rsh or ... very useful for cluster management (software update)

Show the PATH, one directory per line (part 2)
Here is another way to show the path, one directory per line. The command `tr` translates the colon into the new line, taking input from the $PATH variable

find .txt files inside a directory and replace every occurrance of a word inside them via sed

Take screenshots with imagemagick

ISO info
Get details about an ISO image , without burning it or mounting it .

Show what PID is listening on port 80 on Linux

Trick find -exec option to execute alias
An alias cannot be executed as command in a find -exec line. This form will trick the command line and let you do the job.

Show drive names next to their full serial number (and disk info)
Scrap everything and use `gawk` to do all the magic, since it's like the future or something. $ gawk 'match($11, /[a-z]{3}$/) && match($9, /^ata-/) { gsub("../", ""); print $11,"\t",$9 }' Yank out only ata- lines that have a drive letter (ignore lines with partitions). Then strip ../../ and print the output. Yay awk. Be sure to see the alternatives as my initial command is listed there. This one is a revision of the original.

Prints per-line contribution per author for a GIT repository
Uses line-porcelain in git blame, which makes it easier to parse the output.


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