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Full Discussion: Insert content of a file into another file before given pattern
Top Forums Shell Programming and Scripting Insert content of a file into another file before given pattern Post 302942880 by migurus on Saturday 2nd of May 2015 05:10:37 PM
Old 05-02-2015
Insert content of a file into another file before given pattern
I need to insert file x2 into x1 right before first BBB line.
Code:
$ cat x1
AAA     1
AAA     2
AAA     3
BBB     1
BBB     2
BBB     3
$ cat x2
XXX - insert 1
XXX - insert 2

I need to get
Code:
AAA     1
AAA     2
AAA     3
XXX - insert 1
XXX - insert 2
BBB     1
BBB     2
BBB     3

I tried
a)
Code:
$ sed -n '1,/^BBB/p' x1; cat x2; sed -n '/^BBB/,$p' x1
AAA     1
AAA     2
AAA     3
BBB     1
XXX - insert 1
XXX - insert 2
BBB     1
BBB     2
BBB     3

and
b)
Code:
$ sed -e '/^BBB/r x2' x1                                     
AAA     1
AAA     2
AAA     3
BBB     1
XXX - insert 1
XXX - insert 2
BBB     2
XXX - insert 1
XXX - insert 2
BBB     3
XXX - insert 1
XXX - insert 2

Both have problems, (a) inserts after BBB and it duplicates the BBB line, the (b) repeatedly inserts the content and does it again after.

Any ideas?
 

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