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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 HPUX

zgrep

ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep	options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

																	  ZGREP(1)
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