In our first tutorial on command line wizardry, we covered simple redirection and the basics of sed, awk, and grep. Today, we’re going to introduce the concepts of simple variable substitution and ...

The looping options provided by bash include for loops, while loops and until loops. They can help you get a lot done without too much effort. The bash shell provides numerous ways to loop through ...

The Linux fold command can break long lines of text into pieces, but it can also be used to create arguments for looping in scripts. The Linux fold command enables you to break a string of characters ...

While it may seem antiquated in this day and age of modern operating systems, the command line remains the most flexible and powerful way to perform tasks in Linux. The full guide to the Linux command ...

[user@host ~]$ echo $(echo test) test [user@host ~]$ myhomedirsize=$(du -hs ~) [user@host ~]$ echo $myhomedirsize 33K /home/user I think the main reason is that it is ...