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Thanks Corona688 for the information.

I didn't understand completely, can you try replacing those ? with . (period) if echo "$z" | grep -q "R1......R1";

Something like this..?
michaelf>uname
SunOS
michaelf>nawk -F'[: ]' '/Parameter Name/{f=$5;getline;print f"-->"$5}' infile
SNAPSHOTTIMESTAMP-->2014-01-07-15.21.50.022423
DATABASESIZE-->96178176...

Alternate Sed..
$ sed 's/\([^ ]*\) \([^ ]*\) \(.*\).$/\1 \2 \3_\1_\2"/' inputFile
chr1 + "NM_1234_chr1_+"
chr1 - "NM_1234_chr1_-"
$

If you want to reproduce sed's + character to * then try as below
sed 's/@[a-z0-9A-Z][a-z0-9A-Z]*\.[a-zA-Z0-9][a-zA-Z0-9]*/REPLACE/g'

Through Sed..
sed 's/^/000/' inputfile

Try the below as is..
$ uname -rs
SunOS 5.10
$ sed 's/^ *//
> /PRODUCT CODE/{
> :l
> N
> /<.PRODUCT>/{
> s/ *\n *//gp
> d
> }
> bl
> }' inputfile

I do get the expected output as mentioned in post #1 with the same input file pattern. Can you attach the large file that does not work for these solutions..?
$ sed 's/^ *//
> /PRODUCT CODE/{
> :l...

Replace with the below sed in the loop and try..
sed 's/k/'$i'/g' inputfile

Alternate awk..
$ uname -rs
SunOS 5.10
$ nawk '$6!="9999"{gsub(/[)(\]\[]/,"",$0);print}' inputfile

It does not require any change to run in a shell script, just copy paste the sed or awk lines into a file and run. But remember to give full path name of the inputfile, its better coding.
$ cat...

I neither worked in Postgres or installed it in my pc to test hence i would not able to help you much, but try searching in internet for postgres sql tuning tips etc. As suggested earlier try...

Through Sed..
sed -n 'H;/^$/{x;/COMMAND.*SEARCHPATTERN/s/.*\(REQUESTSTRING[^;]*\);.*/\1/p}' inputfile

Or try..
awk '{a[$0]++;next}END{for(i in a)print i,a[i]}' filename

Through Sed
sed 's/\([^,]*,[^,]*,\)\([^ ]*\) \([^,]*\),\([^ ]*\) \([^,]*\)/\1\3 \2,\5 \4/' inputfile

To the test file you have posted above, try something like..
sed '/ARS (11)/!s/.*/SOME TEXT HERE\n&/' test_file
Note: This would not work for all scenarios until there is a exact sample input/test...

Command cut would do the same job
echo $str | cut -d'|' -f1 # try -f2 or -f3

I guess this kind of output is something related to OS. What OS your in..? Try mailx's -a option to send attachment if available

What OS your using..? Maybe you can try as Len=`/usr/local/bin/expr "$BASENAME" : '.*'` instead of length expression.

Here you go..
[mkt@michael]$ sed '/^<li>/{
> />$/!s/$/<\/li>/
> }' inputfile
...
<li>keyword</li>
<li>keyword</li>
<li>keyword</li>
<li>keyword</li>
<li>keyword</li>
...
[mkt@michael]$...

Remove the s in sed command and try, s is for substitute but here you only delete.
sed '/^\.abc/d' inputfile

# General solution..
sed '/^\./d' inputfile

You would need to remove the control character \r present near $1 either by running
$ tr -d '\r' < mc.sh > mc_new.sh
$ ./mc_new.sh
# or if you have the dos2unix utility then
$ dos2unix mc.sh >...

You can try -r alpha@domain.com along with the mail command. But check in your man page as different OS would have their own meanings.

Or this..?
sed -n '/text/s/<[^<]*>//gp' inputfile
sed -n '/text.*1st/s/<[^<]*>//gp' inputfile

Ok.Since you do not pass any input to awk statement you just get the output as File Owner. Try as suggested by itkamaraj or ls -l | ./awk_example1.sh