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Full Discussion: Check file availability and place flag file
Top Forums Shell Programming and Scripting Check file availability and place flag file Post 302899524 by RudiC on Tuesday 29th of April 2014 04:13:20 PM
Old 04-29-2014
I'm afraid I cannot help you as the logics required escape me. I don't see the directories' structures, nor the request files / flags names, nor what they trigger, and when. The flags_info.txt file is fixed, I presume. Do you need/use its contents to schedule the ETL jobs?

Anyhow, there quite some opportunities in your script above:
- change your while and if to until [ -f ...break.timx]
- you don't need the req_file_list variable, nor the for loop. Depending on your shell, you might grep for the ls result immediately, and set the at_least_one variable according to its exit code.
Try
Code:
until [ -f /dir1/dir2/dir3/break.timx ]
    do ls /dir1/dir2/dir3/ReqFiles |grep -f - /dir1/dir2/dir3/flags_info.txt >xx
       atleast_one_req_file_processed=$?
    done

If you describe your needs a bit more in detail, we might be able to add value to your problem.
This User Gave Thanks to RudiC For This Post:
dhruuv369
 

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LEARN ABOUT NETBSD

dh_installdebconf

DH_INSTALLDEBCONF(1)                                                 Debhelper                                                DH_INSTALLDEBCONF(1)

NAME

       dh_installdebconf - install files used by debconf in package build directories

SYNOPSIS

       dh_installdebconf [debhelperoptions] [-n] [--params]

DESCRIPTION

       dh_installdebconf is a debhelper program that is responsible for installing files used by debconf into package build directories.

       It also automatically generates the postrm commands needed to interface with debconf. The commands are added to the maintainer scripts by
       dh_installdeb. See dh_installdeb(1) for an explanation of how that works.

       Note that if you use debconf, your package probably needs to depend on it (it will be added to ${misc:Depends} by this program).

       Note that for your config script to be called by dpkg, your postinst needs to source debconf's confmodule. dh_installdebconf does not
       install this statement into the postinst automatically as it is too hard to do it right.

FILES

       debian/package.config
           This is the debconf config script, and is installed into the DEBIAN directory in the package build directory.

           Inside the script, the token #DEBHELPER# is replaced with shell script snippets generated by other debhelper commands.

       debian/package.templates
           This is the debconf templates file, and is installed into the DEBIAN directory in the package build directory.

       debian/po/
           If this directory is present, this program will automatically use po2debconf(1) to generate merged templates files that include the
           translations from there.

           For this to work, your package should build-depend on po-debconf.

OPTIONS

       -n, --no-scripts
           Do not modify postrm script.

       -- params
           Pass the params to po2debconf.

SEE ALSO

       debhelper(7)

       This program is a part of debhelper.

AUTHOR

       Joey Hess <joeyh@debian.org>

11.1.6ubuntu2                                                       2018-05-10                                                DH_INSTALLDEBCONF(1)
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