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shift

shift [variable ]

If variable is given, shift the words in a word list variable; i.e., name [2] becomes name [1] . With no argument, shift the positional parameters (command-line arguments); i.e., $2 becomes $1 . shift is typically used in a while loop. See additional Example under while .

Example

while ($#argv)      While there are arguments

    if (-f $argv[1])  
       wc -l $argv[1]
    else
       echo "$argv[1] is not a regular file"
    endif
    shift           Get the next argument

end


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