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Full Discussion: Optimizing bash script
Top Forums Shell Programming and Scripting Optimizing bash script Post 302975512 by SkySmart on Tuesday 14th of June 2016 03:02:17 PM
Old 06-14-2016
Optimizing bash script

any way the following code can be optimized?

Code:
FIRSTIN=$(
        HKIPP=$(echo ${TMFR} | egrep -v "mo|MO|Mo" | egrep "m |M ")
        HRAMH=$(echo ${TMFR} | egrep "h|H")
        HRAMD=$(echo ${TMFR} | egrep "d|D")
        HRAMW=$(echo ${TMFR} | egrep "w|W")
        HKIPPO=$(echo ${TMFR} | egrep "mo|MO|Mo")
        if [ -z "${HRAMH}" ] && [ -z "${HRAMD}" ] && [ -z "${HRAMW}" ] && [ -z "${HKIPP}" ] && [ -z "${HKIPPO}" ] ; then
                echo $TMFR | sed 's~[hHmM]~~g' | gawk '{print $1 * 60}'
        elif [ ! -z "${HKIPP}" ] ; then
                echo $TMFR | sed 's~[hHmM]~~g' | gawk '{print $1 * 60}'
        elif [ ! -z "${HRAMH}" ] ; then
                echo $TMFR | sed 's~[hHmM]~~g' | gawk '{print $1 * 60 * 60}'
        elif [ ! -z "${HRAMD}" ] ; then
                echo $TMFR | sed 's~[dD]~~g' | gawk '{print $1 * 1440 * 60}'
        elif [ ! -z "${HRAMW}" ] ; then
                echo $TMFR | sed 's~[wW]~~g' | gawk '{print $1 * 10080 * 60}'
        elif [ ! -z "${HKIPPO}" ] ; then
                echo $TMFR | sed 's~[mo]~~g' | sed 's~[MO]~~g' | sed 's~[Mo]~~g' | gawk '{print $1 * 43200 * 60}'
        else
                echo $TMFR | gawk '{print $1 * 60}'
fi)

preferably in awk?
 

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ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME
atf-sh [-s shell] -- interpreter for shell-based test programs SYNOPSIS
atf-sh script DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library. atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter- preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not use any non-standard extensions. The following options are available: -s shell Specifies the shell to use instead of the value provided by ATF_SHELL. ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes. ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes. ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a specific interpreter. EXAMPLES
Scripts using atf-sh(3) should start with: #! /usr/bin/env atf-sh Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode the path to atf-sh in the script and then use the -s option afterwards as a single parameter: #! /path/to/bin/atf-sh -s/bin/bash ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts. SEE ALSO
atf-sh(3) BSD
September 27, 2014 BSD
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