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While sending mails using sendmail, the domain name is getting appended to the from id. My requirement is not to have that domain name in the From mail id. Could anyone help me on this? I am using...

If I understand your question correctly, you want to search for the date in time.out and if it is present, update it with the line from runtime.out or append to time.out, you may try the below code:...

If you are sure that the error lines will always have an INFO at the end, you may use:

awk '/ERROR/,/INFO/{ if( $0 !~ /INFO/ )print }' infile

For first field:

grep '^num1' infile
For third field:

grep '^[^ ]* [^ ]* num3' infile
Or better, use awk:

awk '{ if($3 == num3 ) print }' infile

Try sorting the files and use comm:

comm -23 file100k File5k

You can use awk for this.

$ awk '{if(arr[$2]=="")arr[$2]=$0; else{split(arr[$2],tmp);if($8>tmp[8]) sub(/tmp[8]$/,arr[$2],$8);}}END{for(item in arr) print arr[item]}' infile
46 CU 1992 8 29 ...

Try this:

awk '/^>/{if(hdr=="") hdr=$0}/^[^>]/{x[$0]++;if(x[$0]==1) {print hdr;print} hdr=""}' infile

awk '{ if( NR == 1 ) start=$1;if(NR != 1 && $1 != (prev+1)) {print start,prev;start=$1;}prev=$1}END{print start,prev}' infile

The awk command in your code is printing version and run_id in seperate lines. So the read command cannot get these values into two variables(it will work only if both values are in the same line)....

psql -U postgres -c "create database dbname"
if [ $? -eq 0 ];then
echo OK
else
echo Not OK
fi

$ nawk '{gsub(/:/,"",st);gsub(/:/,"",et);gsub(/:/,"",$2);if($2>=st && $2<=et) print }' st=09:33:40 et=09:33:58 infile
2009/01/19 093340 --> ---ORA-28817: PL/SQL function returned an error....

echo "/home/test/blah/blah"|grep '/$'
if [$? -eq 0];then
echo "Ends with /"
fi

I think you want to actually edit the file itself. The command given by user agn should work but it will not modify the file. You can redirect the output to a temp file and then rename it.
cut -f...

Which character do you use to indent? space or tab..you need to use that char after the ^ in the reg exp.

grep -v '^ ' filename

You can use the -p option of ls command which marks directories with a slash at end.

ls -p|sed -n 's#/$##p'

$ cat infile
Locking for access COPDB.T1
insert into COPDB.T2 select * from COPDB.T5
update COPDB.T3 set................
insert into COPDB.T7 select * from COPDB.T12
update COPDB.T71...

You can use grep to search for lines not having - in its first five positions and use -v option to print all other lines(i.e lines having - in first five chars)

$ cat t
ab-cd jan-09
ddddd jan09...

echo '31-Jan-2008'|tr '[a-z]' '[A-Z]'|sed 's/-//g;s/JAN/01/;s/FEB/02/;s/MAR/03/;s/APR/04/;s/MAY/05/;s/JUN/06/;s/JUL/07/;s/AUG/08/;s/SEP/09/;s/OCT/10/;s/NOV/11/;s/DEC/12/;'