Check if command exists with shell script
13 ตุลาคม 2563
if ! type gem > /dev/null; then
echo 'gem command not found.'
fi
More on shell
shell8 ธันวาคม 2563
Run incognito/private commands for Bash and Zsh
Simply put a space before the command and it won't be saved to ~/.bash\_history. E.g. qrencode -o out.png "Some secret text"
shell22 ตุลาคม 2563
Upgrade postgres database with homebrew
To upgrade postgres you can run
shell13 ตุลาคม 2563
Amazon AWS S3 CLI copy with set perms
Open term (or equivalent) and paste the following: