string_trim

Table of Contents

Prototype: string_trim(string)

Return type: string

Description: Trim whitespace from beginning and end of string.

Arguments:

  • string: string - Input string - in the range: .*

Example:

bundle agent example_trim
{
  vars:
      "my_string_one" string => string_trim( "  Trim spaces please   ");
      "my_string_two" string => string_trim( "
        Trim newlines also please

      ");

  reports:
      "my_string_one: '$(my_string_one)'";
      "my_string_two: '$(my_string_two)'";
}

bundle agent __main__
{
  methods: "example_trim";
}

R: my_string_one: 'Trim spaces please'
R: my_string_two: 'Trim newlines also please'

This policy can be found in /var/cfengine/share/doc/examples/string_trim.cf and downloaded directly from github.

History: Introduced in CFEngine 3.16

See also: string_head(), string_tail() string_length(), string_reverse().