is a character string or a text expression. If argument might contain a special character or mnemonic operator, listed below, use %QSUBSTR. is an integer or an expression (text, logical, or arithmetic ...
How-To Geek on MSN
8 Linux shell tricks that completely change how commands work
The shell does far more than run commands. Here’s how Bash expands your input behind the scenes so you can write cleaner, ...
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