Category: Linux

Link: Backtick (`) symbol in Linux Shell Scripting

One of the most useful features of shell scripts is the lowly back quote character, usually called the backtick (`) in the Linux world. Be careful—this is not the normal single quotation mark character you are used to using for strings. Because it is not used very often outside of shell scripts, you may not even know where to find it on your keyboard. You should become familiar with it, because it’s a crucial component of many shell scripts.

Hint: On a U.S. keyboard, it is usually on the same key as the tilde symbol ( ∼ ).

The backtick allows you to assign the output of a shell command to a variable. While this doesn’t seem like much, it is a major building block in script programming. …..

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Backtick (`) symbol in Linux Shell Scripting (NextStep4it)

Link: How to Fix a Mangled Partition Table on Linux

Figure 1: Oh dear, a boot failure.

Well there I was, rebuilding a router and having a good time when I accidentally damaged the partition table on my main Linux installation, which is a GUID partition table, or GPT. Figure 1 (above) shows the cheery message that greeted me at boot.

How did this happen? I was installing Voyage Linux on a compact flash card, and while I was messing around with GParted and other filesystem tools I accidentally ran some commands on/dev/sdb, my main hard disk, instead of /dev/sdc, the compact flash card. Like, oops. I don’t know exactly which operations gummed up /dev/sdb, which would be good to know. But I don’t, so let us carry on.

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How to Fix a Mangled Partition Table on Linux (Linux.com)

Link: 8 Pratical Examples of Linux “Touch” Command

In Linux every single file is associated with timestamps, and every file stores the information of last access time, last modification time and last change time. So, whenever we create new file, access or modify an existing file, the timestamps of that file automatically updated.

In this article we will cover some useful practical examples of Linux touch command. The touch command is a standard program for Unix/Linux operating systems, that is used to create, change and modify timestamps of a file. Before heading up for touch command examples, please check out the following options.

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8 Pratical Examples of Linux “Touch” Command (Tecmint)

Link: 15 Useful Bash Shell Built-in Commands (With Examples)

Bash has several commands that comes with the shell (i.e built inside the bash shell).

When you execute a built-in command, bash shell executes it immediately, without invoking any other program.

Bash shell built-in commands are faster than external commands, because external commands usually fork a process to execute it.

In this article let us review some useful bash shell builtins with examples.

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15 Useful Bash Shell Built-in Commands (With Examples) (The Geek Stuff)

Link: 25 Useful Basic Commands of APT-GET and APT-CACHE for Package Management

This article explains how quickly you can learn to install, remove, update and search software packages using apt-get and apt-cache commands from the command line. This article provides some useful commands that will help you to handle package management in Debian/Ubuntu based systems.

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25 Useful Basic Commands of APT-GET and APT-CACHE for Package Management (Tecmint)

Libk: Transmageddon: A Video Transcoder For Linux And Unix Systems

Transmageddon is a video transcoder for Linux and Unix systems built using GStreamer. It supports almost any format as its input and can generate a very large host of output files. The goal of the application was to help people to create the files they need to be able to play on their mobile devices and for people not hugely experienced with multimedia to generate a multimedia file without having to resort to command line tools with ungainly syntaxes.

Full article here:
Transmageddon: A Video Transcoder For Linux And Unix Systems (Unixmen)

Link: Linux Basics: How To Find Size of Directory Commands

This is the first in a series of posts in coming where I’ll be writing about some basic commands that that will be of good use to new users.

Note: This is targeted at people little or no command line experience..

How can I as a new user to Linux display directory properties from the terminal?

Full article here:
Linux Basics: How To Find Size of Directory Commands (Unixmen)