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Top Forums Shell Programming and Scripting help with multiple loops in shell script Post 302610841 by Irishboy24 on Wednesday 21st of March 2012 11:16:33 PM
Old 03-22-2012
help with multiple loops in shell script

Hi Guys-

I'm trying to write a script which takes date as input (mm.yy.dd) and search in the current file. If pattern doesn't exist it will then look in a backup directory and so on.

being a newb i'm unable to loop over to the backup directory. hoping for some ideas, i've highlighted the area where i'm stuck . any advice is appreciated.
I have about mutiple backup directories in the root_dir and the script should keep searching until it runs out of directories.

the naming convention of backup directories is backup-yyyy.mm.dd


Code:
#!bin/bash

datetime=$1
root_dir=/home/xyz
bkup_dir=`ls -tr | grep -i "backup-" | tail -1
pattern=`grep "$datetime" $root_dir/logfile

if [ $pattern = "" ]
then "go into bkup folder and search for pattern "
else
   echo -e $pattern
fi

 

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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
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