Remove every n line

[frlan]

It would be awesome, if the plugin offer a way to delete every n line. I've got regular cases were I need to delete just every second line and somehow I miss this feature. Example:

line 1
line 2
line 3
line 4
line 5

would become

line 1
line 3
line 5

[codebrainz]

As an alternative you could do that in a "custom command", like maybe a python command (untested):

python -c \
  'import sys; sys.stdout.write("\n".join([l for l in sys.stdin.readlines() if l % 2]))'

[b4n]

The same way as @codebrainz's suggestion, you can get this to work easily with sed:

sed -n '1~2p'

Replace 1 with the starting line, and 2 with the step you want -- here it does exactly what you asked for, print every second line starting at line 1, effectively giving every odd line.

[frlan]

Yepp... As all of the options offered by the plugin there is some sed/awk/* way to do it ;)
But it's having an advantage: All in one place and "build in" ;)

[lpaulsen93]

@frlan: I implemented the feature in PR #860. As I am not the author of the plugin the maintainer is up to decide if he wants to accept it or not.