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Top Forums Shell Programming and Scripting How to check the user input to be valid using shell script? Post 302774433 by hyeewang on Friday 1st of March 2013 11:06:05 PM
Old 03-02-2013
How to check the user input to be valid using shell script?

How to check the user input to be valid using shell script?

The valid input is in the format like as follows.
1. It can only have r,w,x or a hyphen and nothing else.
2. ensure the r, w, x are in the correct order.

for example: rwxr-xr-x is a valid format.

Thanks
 

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MBK_IN_PH(1)						     MBK ENVIRONMENT VARIABLES						      MBK_IN_PH(1)

NAME
MBK_IN_PH - define the physical input format of mbk and genlib SYNOPSYS
c-shell running setenv MBK_IN_PH format ORIGIN
This software belongs to the ALLIANCE CAD SYSTEM developed by the ASIM team at LIP6 laboratory of Universite Pierre et Marie CURIE, in Paris, France. Web : http://asim.lip6.fr/recherche/alliance/ E-mail : alliance-users@asim.lip6.fr DESCRIPTION
MBK_IN_PH sets the physical input format of the mbk data structure. The data structure will be filled with informations found in the given format file. valid formats are : - ap, alliance physical format - cp, vti physical format ERRORS
"MBK_IN_PH : 'xxx' unknown format" The argument given to the setenv is not a legal physical input format for mbk. You must changed it before any other action. EXAMPLE
setenv MBK_IN_PH al SEE ALSO
mbk(3), genlib(1), MBK_OUT_PH(1). BUG REPORT
This tool is under development at the ASIM department of the LIP6 laboratory. We need your feedback to improve documentation and tools. ASIM
/LIP6 October 1, 1997 MBK_IN_PH(1)
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