I realize this might throw a spanner into the editorial works here at Linux Journal, but after a two-month sidetrack on how to analyze letter usage in English to give you an edge in Hangman (yeah, I ...

Ok, I can't script my way out of a papper bag, so I need help with this.<P>I declare some variables at the prompt:<P>export catname=Fluffy<BR>export dogname=Spot<P>I ...

The Linux set command allows you to change the value of shell options or to display the names and values of shell variables. Rarely used, it is a bash builtin, but is quite a bit more complicated than ...

You may have seen weird characters in shell commands, but what can they do? These are called "wildcards," and they can make your life in the Linux terminal much easier. Wildcard characters, also known ...

Shell builtins are commands that are loaded into memory when a shell — such as bash, sh, or zsh — is invoked. The reason for this is that keeping these commands in memory helps ensure that these ...

One of the features I like about PowerShell is automatic variables. Automatic variables save you time and provide a more consistent approach at figuring out what's going on under the hood of your ...

There I was, trying to come up with a topic for this column, when I did what I usually do when stumped: I sent a question out to my Twitter followers. This time, I got a great answer, from John ...