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Full Discussion: Read input and match string
Top Forums Shell Programming and Scripting Read input and match string Post 302872021 by crazy_max on Thursday 7th of November 2013 02:42:50 PM
Old 11-07-2013
Read input and match string
Code:
#!/bin/ksh

echo DB LIST
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`
echo

echo "Enter database name from the above list"
echo
read ORACLE_SID
echo
echo Database selected is: $ORACLE_SID
echo

#check to make sure SID pass is correct, if not exit
echo $db_up|grep $ORACLE_SID
INPUT_STAT1=$?
if [ "$INPUT_STAT1" = "0" ]
then
# dO NOTHING
echo "Database name selected was good"
else
echo "Database name was NOT selected from the List Provided"
fi

I am trying to create a script that is going to ask the user executing this script a database name, so it can use proper DB on the server and dose other thingi want.
But my trouble is
1. How do i get a user to NOT just hit enter and move along(they need to type something otherwise it keeps prompt for value over and over)
2. Once they do enter something, i want that to match the DB List i provided earlier, i tried coming up with something but there is a big flaw
there. Lets say my DB list comes out as "test dev prod" and once they get to the input part and they just enter p only and not the actual prod,
it will give the good status and say "Ddatabase name selected was good"....it wont go down to the else part....how do i make sure it matches
one of the strings provided in the DB LIST....
Last edited by Don Cragun; 11-07-2013 at 03:52 PM.. Reason: Fix CODE tags.
 

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LEARN ABOUT LINUX

zegrep

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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