Using sed to delete range of lines except the end pattern -


input.txt:

blah1 blah2 start_pattern blah3 blah4 blah5 end_pattern blah6 blah7

i input.txt become:

blah1 blah2 end_pattern blah6 blah7

i tried following, didn't work.

sed -i "/start_pattern/, /end_pattern/{$!d}" input.txt

this question deals problem:

$ sed '/start_pattern/,/end_pattern/{/end_pattern/!d}' foo.txt blah1 blah2 end_pattern blah6 blah7

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