About line editing

[Stoicho Valkov]

For script purpuse, how can I take a line number and to work with exact line?
Is there simple command which works with lines of the file?
For example I want to take line 3 from file1 and to put it between 6 and 7 of file2?

[Mark Grant]

There are no commands to do what you want here. I would suggest a script to do it.

[Graham Cameron_1]

To get line 3 from file 1
--
awk '(NF==3){print}' file1
--
to get line 3 from file 1 and save it in an environment variable:
--
L3=$(awk '(NR==3){print}' file1)
--
To put this before line 7 of file2 and send the result to fil33
--
awk -v L=$L3 '(NR==7) {print L} {print}' file2 > file3
--
You get the idea.
-- Graham

[T G Manikandan · Accepted solution]

#head -6 ;sed -n '3p' ;tail +7