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Dear Veeresh,

Not answering your question directly, but speaking honestly......

Swap space, especially on Linux systems in the year 2020 is a "relic of the past" (kind of like vacuum tubes...

[^A-Za-z0-9_] replicates the "... non-word constituent character. Word- constituent characters are letters, digits, and the underscore" (cf man grep). This is ORed with begin-of-line ("^") or...

man grep:So Corona688's proposal should be slightly modified likeecho "ABC,123" | awk '$0 ~ "(^|[^A-Za-z0-9_])"P"($|[^A-Za-z0-9_])"' P="ABC"
ABC,123
---------- Post updated at 10:13 ----------...

Try perl:

[user@host ~]$ cat file
the hello world pattern
the pattern hello world
the line without that word
pattern the hello world
the patternhello world
the hellopattern world
the...

Something like this perhaps:

$ echo "ABC123" | awk '$0 ~ "(^|[ \r\n\t])"P"($|[ \r\n\t])"' P="ABC"
$ echo "123ABC123" | awk '$0 ~ "(^|[ \r\n\t])"P"($|[ \r\n\t])"' P="ABC"
$ echo "ABC 123" | awk...

Hi veeresh_15,
The "complete" script you provided shows us why you are having problems using getopts, but it doesn't explain what you're really trying to do. You have shown us four sample command...

How about using ":" between your -d args.

$ ./test_db.ksh -d abc:11:dev -b 12
-b is for Non-default Block Size
BLOCK_SIZE=12
-d is Default option
ORACLE_SID=abc
ORACLE_VERSION=11...

So the work-arounds are
1.
$SU - $lv_INSTANCE_OWNER -c /tmp/runtime_${sid}.ksh > /dev/null </dev/nullor
2.
while read sid <&3 # no $CAT $TMP_FILE1 |
do
...
done 3< $TMP_FILE1

The variable OPTIND is set by getopts to indicate the next command line argument to be processed. (After the options and, if present, -- have been processed.) The command:
shift $((OPTIND - 1))...

A MR.Bean correctly notes it is because you use also "abc" on the command line. So that will end up in the process table. If you would use:
ksh t.ksh ab[c]
then it should also work.

Try:$ORACLE_HOME/OPatch/opatch lsinventory -bugs_fixed | perl -p0e '$spaces=" " x 52;s/\n$spaces(\w)/ $1/g'

On Linux you're most likely running mawk or GNU awk, both of which will re-calculate $0 if you assign to a field (or change NF, although that might depend on the version).

Whatever HP-UX is using...

Since you haven't changed anything to reconstruct the line, you get the output. Try $1 = $1
echo "/a/b/c/d/e/f/g/r/d/c/g" | awk -F '/' '{NF=6; $1=$1}1' OFS=/

I don't know anything about HP-UX, but your awk- version might not like the NF assignment. Try
echo "/u01/app/oracle/product/11.2.0.3/bin/tnslsnr;LISTENER;-inherit"|awk -F'/' -vOFS=\/ '{print...

Can't help with the Red Hat Kernel version naming standard but this might help with this particular issue:

expected=2.6.32-279.el6.x86_64
received=$(uname -r)

exp_ver=${expected//\.el6.*/}...

I can only emphasize what Don Cragun has already said. You didn't post your script therefore, instead of offering detailed advice, i will only make some general remarks. You are invited to post your...