How can I delete all lines before a specific string from a number of files

Question

I have n files, like:

file1:

1aaa
2eee

Test        XXX
Hanna
Lars 

file2:

1fff
2ddd
3zzz

Test        XXX
Mike
Charly

I want to remove all rows before "Test XXX" from all n files. The number of rows to delete varies between files.

My idea:

for file in 1 :n
do
pos=grep -n "Test XXX" file$file
sed -i "1:$pos-1 d" file$file >new$file
done

Answer 1

This should work for you:

sed -i '1,/Test XXX/d' file1
sed -i '1,/Test XXX/d' file2

or simply

sed -i '1,/Test XXX/d' file*

Answer 2

This will work for your examples and even if the matched pattern is on the very first line:

sed -n -E -e '/Text XXX/,$ p' input.txt | sed '1 d'

For example if you input is simply

Test        XXX
Mike
Charly

This will give you

Mike
Charly

If you want to keep the first match Test XXX then just use:

sed -n -E -e '/Text XXX/,$ p' input.txt