1Rex::Commands::Sysctl(3U)ser Contributed Perl DocumentatiRoenx::Commands::Sysctl(3)
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NAME

6       Rex::Commands::Sysctl - Manipulate sysctl
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DESCRIPTION

9       With this module you can set and get sysctl parameters.
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11       Version <= 1.0: All these functions will not be reported.
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13       All these functions are not idempotent.
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SYNOPSIS

16        use Rex::Commands::Sysctl;
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18        my $data = sysctl "net.ipv4.tcp_keepalive_time";
19        sysctl "net.ipv4.tcp_keepalive_time" => 1800;
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EXPORTED FUNCTIONS

22   sysctl($key [, $val [, %options]])
23       This function will read the sysctl key $key.
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25       If $val is given, then this function will set the sysctl key $key.
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27        task "tune", "server01", sub {
28          if( sysctl("net.ipv4.ip_forward") == 0 ) {
29            sysctl "net.ipv4.ip_forward" => 1;
30          }
31        };
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33       If both $val and ensure option are used, the sysctl key is modified and
34       the value may persist in /etc/sysctl.conf depending if ensure option is
35       "present" or "absent".
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37       With ensure => "present", if the key already exists in the file, it
38       will be updated to the new value.
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40        task "forwarding", "server01", sub {
41          sysctl "net.ipv4.ip_forward" => 1, ensure => "present";
42        }
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46perl v5.28.0                      2017-03-01          Rex::Commands::Sysctl(3)