Shell::GetEnv::Dumper - store and retrieve environment
# write environment to file perl /path/to/Shell/GetEnv/Dumper.pm file # read environment from file use Shell::GetEnv::Dumper; $envs = Shell::GetEnv::Dumper::read_envs( $filename );
Shell::GetEnv::Dumper is used by Shell::GetEnv to store and retrieve a subprocess's environment. It uses Storable to write and read the %ENV hash from and to disk.
Writing the environment is done from within the subshell by executing this module as a Perl script. The command line may be formed as follows:
# this loads the path to the module in %INC. use Shell::GetEnv::Dumper; # this invokes the module directly, using the Perl which was # used to invoke the parent process. It uses the fact that we # use()'d Shell::GetEnv::Dumper and Perl stored the absolute path # to it in %INC; $cmd = qq{$^X '$INC{'Shell/GetEnv/Dumper.pm'}' $filename};
Retrieving the environment is done using the read_envs() function.
Note that nothing is exportable from this module.
This function should never be invoked directly. It is called when this module is executed as a standalone Perl script. It expects that $ARGV[0] contains the name of the file to which the environment is to be written. It exits with an error message and non-successful exit status if there is an error.
$ARGV[0]
$envs = Shell::GetEnv::Dumper::read_envs( $filename );
Extract the environment from the given file. The environment must have been written using write_envs().
Diab Jerius, <djerius@cpan.org>
Copyright 2007 Smithsonian Astrophysical Observatory
This software is released under the GNU General Public License. You may find a copy at
http://www.gnu.org/licenses
To install Shell::GetEnv, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Shell::GetEnv
CPAN shell
perl -MCPAN -e shell install Shell::GetEnv
For more information on module installation, please visit the detailed CPAN module installation guide.