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$1 in Technology

The first positional parameter in shell programming and related languages. Occurrences of $1 are replaced by the first actual argument provided by the user when the shell script is run. $2 is replaced by the second argument, and so on up to $9.
You may have arrived at this entry by following a URL like "$1", which is actually a template used to generate pointers to FOLDOC definitions by replacing "$1" with the term to be defined, e.g. in a wiki interwiki map.

The Free On-line Dictionary of Computing, © Denis Howe 2010
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