snippets

snips.md

Snips

• Find and rename files with regexp

  find . -type f -name '*.stories.tsx' -execdir  rename  -v 's/(.*)\.stories\.tsx$/component\.stories\.tsx/' {} \;;
  

• Redirect port:

  sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-ports 8000
  

• Rename all occurance of text:

  git grep -l 'original_text' | xargs sed -i 's/original_text/new_text/g'
  

• Replace a text occurrence with / in multiple files

  cur='@quadlobe/spt'
  rep='spt'
  git grep -l "$cur" | xargs sed -i -e "s%$cur%$rep%g"
  

• Rename files in a directory

  files=$(find . -iname "*.js")
  
  for file in $files; do
    mv "$file" "${file%.js}.ts"
  done
  

Vim macro

• Apply macro on lines matching pattern :g/pattern/norm! @a
• Apply macro on line 5 to 10 :5,10norm! @a
• Apply macro on highlights lines (V) :'<,'>norm! @a