Check if a file is really a file, whether a string contains anything, and whether you can run a program with these vital patterns.

Oh happy day! I got an e-mail from a reader with a shell script question that didn't appear to be homework from a programming class or anything to do with hacking passwords. The reader wrote: I am ...

I'm guessing that each of us uses the command line differently and seeks to accomplish different tasks. Mine are sometimes very specialized, like the script I wrote that lets me easily transform the ...

I'm trying to use a "*" wildcard within a sh (bash) shell script to copy all libs from a directory into another directory:<pre class="ip-ubbcode-code-pre">if [ -d ...