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Top Forums Shell Programming and Scripting not null cheking of an argument in perl Post 302120250 by ammu on Tuesday 5th of June 2007 09:05:00 AM
Old 06-05-2007
Hi Vino,

Thanks for replying. I just want to know whether -z will work in perl script.

if it works then the code should be something like

if ( -z "$ARGV[2]" ) then.....fi


Please correct me if I am wrong

Thanks
Ammu
 

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ExtUtils::Command::MM(3perl)				 Perl Programmers Reference Guide			      ExtUtils::Command::MM(3perl)

NAME
ExtUtils::Command::MM - Commands for the MM's to use in Makefiles SYNOPSIS
perl "-MExtUtils::Command::MM" -e "function" "--" arguments... DESCRIPTION
FOR INTERNAL USE ONLY! The interface is not stable. ExtUtils::Command::MM encapsulates code which would otherwise have to be done with large "one" liners. Any $(FOO) used in the examples are make variables, not Perl. test_harness test_harness($verbose, @test_libs); Runs the tests on @ARGV via Test::Harness passing through the $verbose flag. Any @test_libs will be unshifted onto the test's @INC. @test_libs are run in alphabetical order. pod2man pod2man( '--option=value', $podfile1 => $manpage1, $podfile2 => $manpage2, ... ); # or args on @ARGV pod2man() is a function performing most of the duties of the pod2man program. Its arguments are exactly the same as pod2man as of 5.8.0 with the addition of: --perm_rw octal permission to set the resulting manpage to And the removal of: --verbose/-v --help/-h If no arguments are given to pod2man it will read from @ARGV. If Pod::Man is unavailable, this function will warn and return undef. warn_if_old_packlist perl "-MExtUtils::Command::MM" -e warn_if_old_packlist <somefile> Displays a warning that an old packlist file was found. Reads the filename from @ARGV. perllocal_install perl "-MExtUtils::Command::MM" -e perllocal_install <type> <module name> <key> <value> ... # VMS only, key|value pairs come on STDIN perl "-MExtUtils::Command::MM" -e perllocal_install <type> <module name> < <key>|<value> ... Prints a fragment of POD suitable for appending to perllocal.pod. Arguments are read from @ARGV. 'type' is the type of what you're installing. Usually 'Module'. 'module name' is simply the name of your module. (Foo::Bar) Key/value pairs are extra information about the module. Fields include: installed into which directory your module was out into LINKTYPE dynamic or static linking VERSION module version number EXE_FILES any executables installed in a space seperated list uninstall perl "-MExtUtils::Command::MM" -e uninstall <packlist> A wrapper around ExtUtils::Install::uninstall(). Warns that uninstallation is deprecated and doesn't actually perform the uninstallation. perl v5.14.2 2011-09-26 ExtUtils::Command::MM(3perl)
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