Exec

Basic Shell-like, async by default, command execution with no shell interpreter invocation.

Installation

Add the dependency to your shard.yml:

dependencies:
  exec:
    github: j8r/exec.cr

Usage examples

Adding .wait (API reference) allow to have sync execution.

Shell-like syntax. The command and its arguments are merged in a single String.

output, error = Exec.run "echo hello", { |process| puts process.wait.success? } #=> true
puts output.to_s #=> hello

Most efficient syntax: command as String and arguments as Array(String)

Exec.new "/bin/true", &.wait
Exec.new("/bin/ls", ["/tmp", "-l"]) {}

Arguments can also be a separated String. This is bit more efficient than being merged in a single string with the command.

Exec.run("/bin/ls", "/tmp -l")

License

Copyright (c) 2017-2019 Julien Reichardt - ISC License