pegasus-config - Online in the Cloud

This is the command pegasus-config that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


pegasus-config - The authority for where parts of the Pegasus system exists on the
filesystem. pegasus-config can be used to find libraries such as the DAX generators.

SYNOPSIS


pegasus-config [-h] [--help] [-V] [--version] [--noeoln]
[--perl-dump] [--perl-hash] [--python-dump] [--sh-dump]
[--bin] [--conf] [--java] [--perl] [--python]
[--python-externals] [--schema] [--classpath]
[--local-site] [--full-local]

DESCRIPTION


pegasus-config is used to find locations of Pegasus system components. The tool is used
internally in Pegasus and by users who need to find paths for DAX generator libraries and
schemas.

OPTIONS


-h, --help
Prints help and exits.

-V, --version
Prints Pegasus version information

--perl-dump
Dumps all settings in perl format as separate variables.

--perl-hash
Dumps all settings in perl format as single perl hash.

--python-dump
Dumps all settings in python format.

--sh-dump
Dumps all settings in shell format.

--bin
Print the directory containing Pegasus binaries.

--conf
Print the directory containing configuration files.

--java
Print the directory containing the jars.

--perl
Print the directory to include into your PERL5LIB.

--python
Print the directory to include into your PYTHONLIB.

--python-externals
Print the directory to the external Python libraries.

--schema
Print the directory containing schemas.

--classpath
Builds a classpath containing the Pegasus jars.

--noeoln
Do not produce a end-of-line after output. This is useful when being called from
non-shell backticks in scripts. However, order is important for this option: If you
intend to use it, specify it first.

--local-site [d]
Create a site catalog entry for site "local". This is only an XML snippet without root
element nor XML headers. The optional argument "d" points to the mount point to use.
If not specified, defaults to the user’s $HOME directory.

--full-local [d]
Create a complete site catalog with only site "local". The an XML snippet without root
element nor XML headers. The optional argument "d" points to the mount point to use.
If not specified, defaults to the user’s $HOME directory.

EXAMPLE


To set the PYTHONPATH variable in your shell for using the Python DAX API:

export PYTHONPATH=`pegasus-config --python`

To set the same path inside Python:

config = subprocess.Popen("pegasus-config --python-dump", stdout=subprocess.PIPE, shell=True).communicate()[0]
exec config

To set the PERL5LIB variable in your shell for using the Perl DAX API:

export PERL5LIB=`pegasus-config --perl`

To set the same path inside Perl:

eval `pegasus-config --perl-dump`;
die("Unable to eval pegasus-config output: $@") if $@;

will set variables a number of lexically local-scoped my variables with prefix "pegasus_"
and expand Perl’s search path for this script.

Alternatively, you can fail early and collect all Pegasus-related variables into a single
global %pegasus variable for convenience:

BEGIN {
eval `pegasus-config --perl-hash`;
die("Unable to eval pegasus-config output: $@") if $@;
}

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