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Cheat sheet act as a reference tool which provides cut and paste kind of commands to complete a specific task. I often recommend following set of best cheat sheets to students and IT professionals. It include Linux / UNIX command and shell scripting.

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Since version 4.3, gcc changed its behavior concerning the x86/x86-64 ABI and the direction flag, that is it now assumes that the direction flag is cleared at the entry of a function and it doesn’t clear once more if needed. According to LWN article GCC 4.3.0 exposes a kernel bug: A change to GCC for […]

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While writing a shell script you may want to find out the length of a string. While reading GNU expr command man page I found an interesting option:

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This is an interesting review on PC-BSD and to be honest it looks like a decent alternative to desktop Linux. I’ve already written about Linux vs FreeBSD on server with lots of interesting commentary from both FreeBSD and Linux fan boys users. I’m using Linux desktop since 1999 and I will never go back to […]

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In order to write DVD/DVD-RW from shell prompt you need to install a package called dvd+rw-tools. DVD is another good option for backup, archiving, data exchange etc. You can install dvd+rw-tools with following commands. Also note that this package works under *BSD, HP-UX, Solaris and other UNIX like operating systems. Debian installation: # apt-get install […]

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smartd is SMART Disk Monitoring Daemon for Linux. SMART is acronym for Self-Monitoring, Analysis and Reporting Technology (SMART) system built into many ATA-3 and later ATA, IDE and SCSI-3 hard drives. The purpose of SMART is to monitor the reliability of the hard drive and predict drive failures, and to carry out different types of […]

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