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The method export vname=value will override the original value. I want a way to append to the old value by colon.

Any idea how? Thanks.

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up vote 2 down vote accepted

Try this:

export vname=${vname}:appendedtext


$ export foo=bar
$ echo $foo
$ export foo=${foo}:baz
$ echo $foo
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That works. Thanks! – CppLearner Jan 3 '13 at 5:06

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