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Full Discussion: Insert a line of text on nth line of a file
Top Forums UNIX for Beginners Questions & Answers Insert a line of text on nth line of a file Post 302967447 by RavinderSingh13 on Wednesday 24th of February 2016 12:15:33 AM
Old 02-24-2016
Hello gotamp,

Could you please try following and let me know if this helps you.
Let's say following is the Input_file.
Code:
cat Input_file
200,1245,E1,1,E1,,7611068,KWH,30, ,,,,,,,,
200,1245,E1,1,E1,,7611070,KWH,30, ,,,,,,,,
300,20140223,0.001,0.001,0.001,0.001,0.001
300,20140224,0.001,0.001,0.001,0.001,0.001
300,20140225,0.001,0.001,0.001,0.001,0.001
300,20140226,0.001,0.001,0.001,0.001,0.001
300,20140227,0.001,0.001,0.001,0.001,0.001
300,20140228,0.001,0.001,0.001,0.001,0.001
300,20140301,0.001,0.001,0.001,0.001,0.001
300,20140302,0.001,0.001,0.001,0.001,0.001
300,20140303,0.001,0.001,0.001,0.001,0.001
300,20140304,0.001,0.001,0.001,0.001,0.001
1300,20140305,0.001,0.001,0.001,0.001,0.001
300,20140305,0.001,0.001,0.001,0.001,0.001
300,20140305,0.001,0.001,0.001,0.001,0.001
200,1254,E1,1,E1,,4749337,KWH,30, ,,,,,,,,
300,20140306,0.001,0.001,0.001,0.001,0.001

Then following code may be helpful for you, which will insert a line after 13th line of Input_file and save the Input_file too with changes.
Code:
sed -n -i 'p;13a "CHUMMA"'  Input_file

Output will be as follows now.
Code:
cat Input_file
200,1245,E1,1,E1,,7611068,KWH,30, ,,,,,,,,
200,1245,E1,1,E1,,7611070,KWH,30, ,,,,,,,,
300,20140223,0.001,0.001,0.001,0.001,0.001
300,20140224,0.001,0.001,0.001,0.001,0.001
300,20140225,0.001,0.001,0.001,0.001,0.001
300,20140226,0.001,0.001,0.001,0.001,0.001
300,20140227,0.001,0.001,0.001,0.001,0.001
300,20140228,0.001,0.001,0.001,0.001,0.001
300,20140301,0.001,0.001,0.001,0.001,0.001
300,20140302,0.001,0.001,0.001,0.001,0.001
300,20140303,0.001,0.001,0.001,0.001,0.001
300,20140304,0.001,0.001,0.001,0.001,0.001
1300,20140305,0.001,0.001,0.001,0.001,0.001
"CHUMMA"
300,20140305,0.001,0.001,0.001,0.001,0.001
300,20140305,0.001,0.001,0.001,0.001,0.001
200,1254,E1,1,E1,,4749337,KWH,30, ,,,,,,,,
300,20140306,0.001,0.001,0.001,0.001,0.001

In case you don't want to save the changes in Input_file then following may be helpful to you.
Code:
sed -n 'p;13a "CHUMMA"'  Input_file

Hope this helps you(Also I tried this in GNU sed only).

Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
gotamp
 

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