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Top Forums Shell Programming and Scripting How to Force command substitution evaluation in bash? Post 302971104 by Don Cragun on Friday 15th of April 2016 03:54:33 PM
Old 04-15-2016
Hi siegfried,
In post #2 in this thread, I said:
Quote:
Show us the source for your BackupRecords program.
In post #4 in this thread I said:
Quote:
The only thing that makes sense to me is that value returned by BackupRecords --log must return a string that includes a command substitution (from the description, probably including an invocation of the date utility) that produces different results each time $BUPLOG is expanded. But, the only way to know for sure is to see the source for BackupRecords.
In post #6 in this thread, shamrock said:
Quote:
I agree with the others in that the answer lies somewhere in your BackupRecords script...
In post #8 in this thread, I said:
Quote:
If you won't show us the code for BackupRecords, it is REALLY REALLY hard for us to tell you how to fix it to do what you want.
Instead of showing us the source for your BackupRecords program as we have requested four times, you keep asking us to tell you how to fix code that you will not let us see,.

We want to help you. PLEASE HELP US HELP YOU! Please show us the source for BackupRecords! If you won't show us the source for BackupRecords, we are all wasting our time trying to help you. PLEASE HELP US HELP YOU! Show us the source for BackupRecords!
 

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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
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