Commands using read (340)

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

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"

Exit shell faster
Use ^D instead of exit. Also ^D ends input stream when you use terminal for typing into standard input.

Test your bash skills.

Find out how much data is waiting to be written to disk
Ever ask yourself "How much data would be lost if I pressed the reset button?" Scary, isn't it?

Getting a domain from url, ex: very nice to get url from squid access.log

Exclude inserting a table from a sql import
Starting with a large MySQL dump file (*.sql) remove any lines that have inserts for the specified table. Sometimes one or two tables are very large and uneeded, eg. log tables. To exclude multiple tables you can get fancy with sed, or just run the command again on subsequently generated files.

Getting information about model no. of computer
This command gives a model information of a computer. Also useful in determining the host is a VM machine or actual physical machine.

copy/mkdir and automatically create parent directories
The --parents option will cause cp or mkdir to automatically create the parent directory structure. $mkdir --parents /one/two/three/dir will create /one, /one/two, and /one/two/three as needed before creating dir. cp will copy files with their full directory structure into the target directory with this option. Thanks to Peter Leung at: http://linuxcommando.blogspot.com/2007/11/use-of-parents-flag-in-mkdir-and-c.html which has good examples of usage.

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"


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