9 lines (9 loc) · 367 Bytes

Regex notes

http://regexr.com/
Vim
- :%s/\s*\d\+m\s\d\+s//g - delete entries like:' 1m 1s', ' 1m 10s', ' 10m 10s'
- :g/^$/d - delete empty lines
- :%s/\./_/g- replace dot '.' with underscore ; dot must be escaped
commands
- find . -type d -empty -delete - delete empty directories in this tree
- sed 'N;s/\n//' delete every second newline