.perl_wrapper

Package: WA2L/edrc 1.5.57
Section: General Commands (1)
Updated: 31 January 2015
Index Return to Main Contents

 

NAME

perl_wrapper - wrap Perl scripts to ensure perl startup

 

SYNOPSIS

edrc/bin/perlscript -> .perl_wrapper

edrc/lib/perlscript -> .perl_wrapper

 

AVAILABILITY

WA2L/edrc

 

DESCRIPTION

Wrap Perl scripts to avoid using #!/usr/bin/perl or similar path names in the magic key. This enhances the portability of WA2L/edrc commands written in Perl to systems where perl is not installed in the default install locations.

perl has to be installed in /bin/, /sbin/, /usr/local/bin/ or /usr/contrib/bin/.

Further perl locations can be configured in the config file perl_wrapper.cfg.

The Perl modules bundled with WA2L/edrc that are installed in lib/perl/pm/<perl-revision>/ are included in the Perl library path (@INC) and the ld environment variables ($SHLIB_PATH, $LD_LIBRARY_PATH) are expanded to the directory lib/<OS-Id>/libs/ that might contain additional needed shared libraries.

To start a new command thru the .perl_wrapper, follow the following steps:

1.)
create a symlink to the new command in the edrc/bin/ or edrc/lib/ directory depending on your needs:

[ /opt/edrc/bin ]
[ root@acme001 ][*edrc*/bash]: ln -s .perl_wrapper new_cmd 

2.)
install the Perl script in the edrc/lib/perl/ directory:

[ /opt/edrc/lib/perl ]
[ root@acme001 ][*edrc*/bash]: vi new_cmd

[ /opt/edrc/lib/perl ]
[ root@acme001 ][*edrc*/bash]: chmod 644 new_cmd

 

OPTIONS

-

 

ENVIRONMENT

-

 

EXIT STATUS

101
shell (perl) not found. If perl is installed on the system and you get this error, add the perl location in the configuration file perl_wrapper.cfg.

102
the Perl script to be started that should be located in lib/perl/ does not exist.

103
user calling the command has no permission to access/execute the called perlscript.

106
configuration file perl_wrapper.cfg does not exist.

107
the .perl_wrapper was called directly.

 

FILES

etc/perl_wrapper.cfg
configuration file for the .perl_wrapper command.

lib/perl/
location of the wrapped Perl scripts. This files should have the file permissions 644 to show, that those scripts should not be started directly.

lib/perl/pm/<perl-revision>/
location of the perl modules bundled with WA2L/edrc.

lib/<OS-Id>/libs/
locations of the provided shared libraries for a certain operating system (OS-Id).

 

EXAMPLES

-

 

SEE ALSO

edrcintro(1), binprobe(1m), cmdlist(1m), daemon_wrapper(1), java_wrapper(1), ksh_wrapper(1), lua_wrapper(1), ln(1), ld(1), osid(3), os_wrapper(1), perl(1), perlenv(3), perlversion(3), perl_modules(3), perl_wrapper.cfg(4), pmdesc(1), shlib(3)

 

NOTES

-

 

BUGS

-

 

AUTHOR

perl_wrapper was developed by Christian Walther. Send suggestions and bug reports to wa2l@users.sourceforge.net .

 

COPYRIGHT

Copyright © 2015 Christian Walther

This is free software; see edrc/doc/COPYING for copying conditions. There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


 

Index

NAME
SYNOPSIS
AVAILABILITY
DESCRIPTION
OPTIONS
ENVIRONMENT
EXIT STATUS
FILES
EXAMPLES
SEE ALSO
NOTES
BUGS
AUTHOR
COPYRIGHT

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Time: 22:46:42 GMT, April 07, 2025