Commands by SlimG (4)

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Search and replace in multiple files recursively
Replace "foo" with "bar" in all files in current directory recursively

Print a list of the 30 last modified mp3s sorted by last first

Setting reserved blocks percentage to 1%
According to tune2fs manual, reserved blocks are designed to keep your system from failing when you run out of space. Its reserves space for privileged processes such as daemons (like syslogd, for ex.) and other root level processes; also the reserved space can prevent the filesystem from fragmenting as it fills up. By default this is 5% regardless of the size of the partition. http://www.ducea.com/2008/03/04/ext3-reserved-blocks-percentage/

Find size in kilobyte of files that are deleted but still in use and therefore consumes diskspace

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"

Annotate tail -f with timestamps

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

Run a program transparently, but print a stack trace if it fails
For automated unit tests I wanted my program to run normally, but if it crashed, to add a stack trace to the output log. I came up with this command so I wouldn't have to mess around with core files. The one downside is that it does smoosh your program's stderr and stdout together.

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

intersection between two files


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