i am not expert in Linux commands , seeking all your help for my requirement.

i have file that has huge number of records, that we can be differentiated by three sections that is header record , Content and footer records .

File Sample Content :-

HDR1
HDR2
HDR3
LIN 1
bla blaa1 
Bla blaa2
......
.....
..
LIN 2
bla blaa1 
Bla blaa2
......
.....
..
Footer1
Footer2
Footer3

From the above sample records from a file , I want to populate the Lines from "LIN 2" to before "Footer1" line to another new file and delete the lines from the old file .

Please help with the command , your help will be much appreciated .

CodePudding user response：

I won't give you the entire solution, but using these tips you can find out:

• In order to find an entry in a file, you can use grep (like grep "LIN 2" filename).
• Once you have this, you can add -n to the result in order to know the line number of the result (like grep -n "LIN 2" filename).
• Using awk, you can make sure only to get that information (like grep "LIN 2" filename | awk -F: '{print $1}').
• In order to see the first 10 lines of a file, do head -n 10 filename.
• In order to see the last 10 lines of a file, do tail -n 10 filename.

Using that information, you should be able to get your result.