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HowTo: Use Bash Parameter Substitution Like A ProOct 14, 2010, 22:03 (0 Talkback[s])
(Other stories by Vivek Gite)
[ Thanks to An Anonymous Reader for this link. ]
"The $ character is used for parameter expansion, and command substitution. You can use it for manipulating and/or expanding variables on demands without using external commands such as sed or awk.
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