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Full Discussion: Read input and match string
Top Forums Shell Programming and Scripting Read input and match string Post 302872033 by greet_sed on Thursday 7th of November 2013 03:07:20 PM
Old 11-07-2013
you have the code already with read.

Start with this:

Code:
while [ -z "$VALUE_READ" ]
do
read -p 'Enter the DB value: ' VALUE_READ
done

-z - True of the length if "STRING" is zero. Refer here

few points:

Code:
ps -ef | grep pmon | grep -v grep | awk -F_ '{print $3}' | sort
db_up=`ps -ef | grep pmon | grep -v grep | awk -F_ '{print $3}' | sort`

try to use awk instead of grep & pipe.

Code:
echo $db_up|grep $ORACLE_SID
INPUT_STAT1=$?
if [ "$INPUT_STAT1" = "0" ]

you can check the exit status of previous command directly instead of assigning to variable and check.
 

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LEARN ABOUT NETBSD

zegrep

ZGREP(1)						    BSD General Commands Manual 						  ZGREP(1)

NAME

     zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files

SYNOPSIS

     zgrep [grep-flags] [--] pattern [files ...]

     zegrep [grep-flags] [--] pattern [file ...]

     zfgrep [grep-flags] [--] pattern [file ...]

DESCRIPTION

     zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1).

     The grep-flags and pattern arguments are passed on to grep(1).  If an -e flag is found in the grep-flags, zgrep will not look for a pattern
     argument.

     zegrep calls egrep(1), while zfgrep calls fgrep(1).

EXIT STATUS

     In case of missing arguments or missing pattern, 1 will be returned, otherwise 0.

SEE ALSO

     egrep(1), fgrep(1), grep(1), gzip(1), zcat(1)

AUTHORS

     Thomas Klausner <wiz@NetBSD.org>

BSD
								 December 28, 2003							       BSD
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