Just Programmer's Manual

Quiet Recipes

A recipe name may be prefixed with @ to invert the meaning of @ before each line:

@quiet:
  echo hello
  echo goodbye
  @# all done!

Now only the lines starting with @ will be echoed:

$ j quiet
hello
goodbye
# all done!

Shebang recipes are quiet by default:

foo:
  #!/usr/bin/env bash
  echo 'Foo!'

$ just foo
Foo!

Adding @ to a shebang recipe name makes just print the recipe before executing it:

@bar:
  #!/usr/bin/env bash
  echo 'Bar!'

$ just bar
#!/usr/bin/env bash
echo 'Bar!'
Bar!