03-18-2015
Quote:
Originally Posted by
omonoiatis9
...
however i have some questions about the implementation of this new bash version that i created.
shall i just copy the bash command to my library directory or do i need to do something else first? i mean i need to uninstall bash and install it again? it does not effect the "whole bash package"?
As a simple solution i would keep the current package and just overwrite the orginal bash with your custom build, but keep in mind, that after a software update you may need to recopy your bash and you should keep your custom build up date for security reasons.
A more complex solution is to maintain your own bash package (rpm).
- Download a sample rpm-spec file for AIX from
Perzl.org (e.g. bash-4.3-13.spec)
- write a custom spec-patch file which disable the option and add them to the bash spec file
- build
rpm -ba bash-*.spec your custom rpm
Regards
PS
Please validate the other suggestions (e.g from Don Cragun). Maybe manipulating the bash is to much for that what your need.
Last edited by -=XrAy=-; 03-18-2015 at 05:52 AM..
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LEARN ABOUT X11R4
libbash
LIBBASH(7) libbash Manual LIBBASH(7)
NAME
libbash -- A bash shared libraries package.
DESCRIPTION
libbash is a package that enables bash dynamic-like shared libraries. Actually its a tool for managing bash scripts whose functions you may
want to load and use in scripts of your own.
It contains a 'dynamic loader' for the shared libraries ( ldbash(1)), a configuration tool (ldbashconfig(8)), and some libraries.
Using ldbash(1) you are able to load loadable bash libraries, such as getopts(1) and hashstash(1). A bash shared library that can be loaded
using
ldbash(1) must answer 4 requirments:
1. It must be installed in $LIBBASH_PREFIX/lib/bash (default is /usr/lib/bash).
2. It must contain a line that begins with '#EXPORT='. That line will contain (after the '=') a list of functions that the library
exports. I.e. all the function that will be usable after loading that library will be listed in that line.
3. It must contain a line that begins with '#REQUIRE='. That line will contain (after the '=') a list of bash libraries that are
required for our library. I.e. every bash library that is in use in our bash library must be listed there.
4. The library must be listed (For more information, see ldbashconfig(8)).
Basic guidelines for writing library of your own:
1. Be aware, that your library will be actually sourced. So, basically, it should contain (i.e define) only functions.
2. Try to declare all variables intended for internal use as local.
3. Global variables and functions that are intended for internal use (i.e are not defined in '#EXPORT=') should begin with:
__<library_name>_
For example, internal function myfoosort of hashstash library should be named as
__hashstash_myfoosort
This helps to avoid conflicts in global name space when using libraries that come from different vendors.
4. See html manual for full version of this guide.
AUTHORS
Hai Zaar <haizaar@haizaar.com>
Gil Ran <ril@ran4.net>
SEE ALSO
ldbash(1), ldbashconfig(8), getopts(1), hashstash(1) colors(1) messages(1) urlcoding(1) locks(1)
Linux Epoch Linux