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Top Forums Shell Programming and Scripting How to Force command substitution evaluation in bash? Post 302969725 by siegfried on Saturday 26th of March 2016 08:52:56 PM
Old 03-26-2016
How to Force command substitution evaluation in bash?

OK, I'm striving to abide by all the rules this time.

Here is a fragment of my windows10/cygwin64/bash script:
Code:
export BUPLOG=$(BackupRecords --log "$src")
robocopy  $(BackupRecords -mrbd "$src" --path "$src")  $(BackupRecords --appSwitches "$src") "$src" "$dst"  $(BackupRecords --fileSwitches "$src") >$BUPLOG 2>&1
BackupRecords --complete "$src"
echo \*\*\* ALL DONE \*\*\* >>$BUPLOG 2>&1

"BackupRecords --log" is a program I wrote to return a unique log file name using the current time.

The problem is that I get two different log files. How can I force the evaluation of BUGLOG sooner?


Thanks
Siegfried
Moderator's Comments:
Mod Comment This thread duplicates the thread How to Force command substituion evaluation in bash? Please continue any further discussion on this topic in that thread.

This thread is closed.

Last edited by Don Cragun; 03-26-2016 at 11:07 PM.. Reason: Post link to duplicate.
 

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gst-complete-0.8(1)						   User Commands					       gst-complete-0.8(1)

NAME
gst-complete-0.8, gst-complete - perform bash completion for gst-launch command lines SYNOPSIS
complete -Cgst-complete-0.8 gst-launch gst-complete [--gst-list-mm] [--gst-mm=string] [--print] DESCRIPTION
gst-complete-0.8 enables bash to provide context-sensitive tab completion for gst-launch command lines. See gst-launch(1) for the syntax of gst-launch command lines. You must have a version of bash that supports programmable completion. Such versions of bash provide the complete built-in command. gst-complete is a wrapper script that runs the latest installed version of gst-complete-X.X. For example, if both gst-complete-0.7 and gst- complete-0.8 are installed on your system, gst-complete runs gst-complete-0.8. OPTIONS
The following options are supported by gst-complete-0.8 and gst-complete: --help Display detailed usage message. You can also use -? to specify this option. The following options are supported by gst-complete only: --gst-list-mm List found major/minor versions. This option displays the versions that are available. --gst-mm=string Force major/minor version. This option enables you to specify a specific version to run, if you do not want to run the default version. --print Print wrapped command line. This option displays the command that will be run, and then runs the command. EXAMPLES
Example 1: Generating the Registry of Available Plugins by Running gst-compprep Run the following command in your .bash_profile or other appropriate place: example% complete -C gst-complete-0.8 gst-launch Example 2: Running the Wrapper Script and Displaying the Command Name example% gst-complete --print /usr/bin/gst-complete-0.8 FILES
The following files are used by this application: /usr/bin/gst-complete-0.Executable for bash completion for gst-launch /usr/bin/gst-complete Wrapper script that runs the latest installed version of gst-complete-X.X ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWgnome-media | +-----------------------------+-----------------------------+ |Interface stability |External | +-----------------------------+-----------------------------+ SEE ALSO
gst-compprep(1), gst-feedback(1), gst-inspect(1), gst-launch(1), gst-launch-ext(1), gst-md5sum(1), gst-register(1), gst-thumbnail(1), gst- typefind(1), gst-xmlinspect(1), gst-xmllaunch(1), gstreamer-properties(1), libgstreamer-0.8(3), libgstgetbits(3) NOTES
Original man page written by the GStreamer team at http://gstreamer.net/. Updated by Brian Cameron, Sun Microsystems Inc., 2004. SunOS 5.10 14 Oct 2004 gst-complete-0.8(1)
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