Help needed with sed - UNIX for Dummies Questions & Answers

#1 03-03-2003

Hi,

I need to insert a line into a file underneath an existing line in the file, but am unsure as to the syntax. I'm pretty sure sed can be used though, although any ideas are more than welcome. For example:

File
----
Line 1
Line 2
Line 3
Line 4
Line 6

I need to say: Insert "Line 5" after "Line 4".
Hope this is clear

Perderabo · #2 03-03-2003

Code:

# insert a line so that the new line will be line number 5
sed '5i\
A new line' < $file

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