Commands tagged file descriptors (2)

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Gets the last string of previous command with !$
It helps you save a lot of writing :-)

using scanner device from command line
you have to replace "mustek_usb" with the scanner found by `scanimage -l`

Find the package that installed a command

Don't like the cut command? Tired of typing awk '{print $xxx}', try this

Find today created files

Create a file of a given size in linux
If you're trying to create a sparse file, you can use dd by 'skip'ing to the last block instance. ls -ls shows the actual size vs. the reported size

Write on the console without being registered
http://www.linux-party.com/index.php/8157-escribir-en-la-consola-linux-sin-que-quede-registrado-en-el-history

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

Send a local file via email
Send it the easy way, with MIME and everything handled for you by an app that knows best.

find available cpu frequencies on FreeBSD
Once you know the available frequencies for your CPU, they can be used to do things like set minimum CPU frequency for powerd so that it doesn't ramp down too slow on a server : /etc/sysctl.conf or /boot/loader.conf: debug.cpufreq.lowest=DESIRED FREQ HERE or at terminal sysctl debug.cpufreq.lowest=DESIRED FREQ HERE


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