4:02 PM Shift command with examples |
shift - shift command is used to shift positional parameters FORMAT DESCRIPTION
The value n shall be an unsigned decimal integer less than or equal to the value of the special parameter '#' . If n is not given, it is assumed to be 1. If n is 0, the positional and special parameters are not changed. Examples: Below is a simple script to understand the use of shift command: shanky@local:/home/shanky/test:> cat shifttest.sh #!/usr/bin/ksh print "All parameters before shift:$*" print "Param1=$1"; We have used "shift 2" to shift the positional parameters by 2 positions. When we execute the script, the output is as below:
You may notice that the first parameter is containing the value of 3rd positional paremters and so on.. |
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