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Full Discussion: Until the file extension matches
Top Forums Shell Programming and Scripting Until the file extension matches Post 302193043 by Sreejith_VK on Thursday 8th of May 2008 10:44:38 AM
Old 05-08-2008
Until the file extension matches
Hi All,

In my script I am trying to input data from user and I want the promt to appear again if the input data is not the one expected.

I tried something like this:

Code:
    echo " \n\n\t Enter the dump filename:\c";read dump
    pst=${dump##*.}
    until (test $pst = dmp)
        do
        echo " \n\n\t File extension not supported.!!!"
        echo " \n\n\t Enter the dump filename(eg:abc.dmp):\c"
        read dump
        done

but this not become false in any case and the prompt is apprearing again and again even if the condition is met(ie,if the user inputs .dmp file)
Where did I go wrong?
Sreejith_VK
 

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LEARN ABOUT HPUX

cr_open

cr_open(3)						     Library Functions Manual							cr_open(3)

NAME

       cr_open() - open crash dump for reading

SYNOPSIS

DESCRIPTION

       The library call opens a crash dump and passes back a crash dump descriptor.

       The path argument points to a path name naming a crash dump directory or file, and must not exceed bytes in length.

       The CRASH * to which crash_cb points is set to a crash dump descriptor, which can then be passed to the other functions to access the crash
       dump.

       flags is a bitmask of zero or more of the following flag values, which affect the operation of future calls to libcrash routines  for  this
       crash dump, except for cr_verify(3), which has its own flags parameter.

       The library will not attempt to verify checksums of files in the crash
			     dump if this flag is set.

       The library will write messages to stderr during time-consuming operations
			     (decompressions and checksums) if this flag is set.

RETURN VALUE

       Returns zero for success.  Other possible return values are described in libcrash(5).

EXAMPLES

       The following call to opens crash dump contained in the directory and returns the crash dump descriptor For an example of reading the crash
       dump see the cr_read(3) manual entry.

AUTHOR

       was developed by HP.

SEE ALSO

       cr_close(3), cr_perror(3), libcrash(5).

																	cr_open(3)
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