The basic syntax for an if command is “if value == other_value”. The == performs a comparison, and it’s necessary to ensure that the shell sees one value on each side of the comparison operator.

To get started as a Linux (or Unix) user, you need to have a good perspective on how Linux works and a handle on some of the most basic commands.

The command line isn't just for wise Linux beards. It's actually an awesome tool with almost limitless functionality. Here's a primer on how it works, and how you can do almost anything with it ...

Line 4: Shows an example of another basic command called pwd which stands for print working directory. Line 5: As seen before, this line shows the result of the command previously issued. /tmp is our ...

The command-line interface of your Mac lets you get into the Unix underpinning that makes Macs so powerful. Learn the top commands everyone should know to be a Mac power user. Over the years, the ...

Operator: Function: Example; Process the command on the right after you're done processing the command on the left. echo one ; echo two: Place the output of the thing on the left in the empty file ...

For example, the ls command, by default, hides within its results certain files, such as those with file names that possess a period (or dot) as the first character.

The basic command syntax is 'scp' followed by file name, user name, server name or IP address, and remote directory path on that server to access. For example: scp example.txt [email protected] ...

For example, every character you type matters, even spaces; you navigate through lines using your arrow keys; and you have to press the "return," or "enter," button to give a command.