leave each Nth line, if contains .... (in script)

Gonen Shoham

Hi

I have a file like this:

AAAAA
BBBBB - 11111
BBBBB - 22222
BBBBB - 33333
CCCCC
BBBBB - 44444
BBBBB - 55555
BBBBB - 66666
BBBBB - 77777
BBBBB - 88888
BBBBB - 99999
BBBBB - 00000
BBBBB - AAAA

first request - i would like to work only on the lines that contain BBBBB and leave every 5th line of them
second request - i would like to delete all lines that contain a specific string

I need these to run in a script

many thanks

guy038

Hello, @gonen-shoham,

I understood that you’re interested on lines containing the string BBBBB only, and, also, that you would like to delete lines with a specific string. But, as English is not my native language, I’m still wondering about the expression leave every 5th line of them !

May be, you could show us from your initial text, or other text, what is the exact text that you expect to ?

Best Regards,

guy038

Claudia Frank

@Gonen-Shoham

in addition to what Guy already mentioned, it would be good to know what kind of
scripting language you are thinking of.

Cheers
Claudia