Commands by wgzhao (1)

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Keep track of diff progress
When running a long `diff -r` over folders, this simulates a "verbose" mode where you can see where diff is in the tree. Replace $file with the first part of the path being compared.

phpinfo from the command line
show phpinfo(); from the command line

Using mplayer to play the audio only but suppress the video
Sometimes you only want to linsten the audio while output the video will be a waste of CPU resource and an annoying window. With option -vo null, you will enjoy the audio!

recursive search and replace old with new string, inside files
Using -Z with grep and -0 with xargs handles file names with spaces and special characters.

Use top to monitor only all processes with the same name fragment 'foo'
top accecpts a comma separated list of PIDs.

get detailed info about a lan card on HP-UX 11.31

Testing hard disk writing speed

Expand shortened URLs
This relies on a public API from http://longurl.org. So, this has the weakness that if the service disappears, the function will break. However, it has the advantage that the shortened URL service will not be tracking your IP address and other metrics, but instead will track longurl.org. Thus, you can remain anonymous from the shortened URL services (although not anonymous from longurl.org). It does no sanity checking that you have provided an argument. If you do not provide one, "message" is displayed to STDOUT.

Search some text from all files inside a directory

Color STDERR in output
This command will take the output of a command and color any STDERR output as a different color (red outline in this case)

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