varnishadm - Control a running Varnish instance

       The varnishadm utility and this manual page were written by Cecilie Fritzvold. This man  page  has  later
       been modified by Per Buer, Federico G.  Schwindt and Lasse Karstensen.

                                                                                                   VARNISHADM(1)

       The  varnishadm  utility establishes a CLI connection to varnishd either using -n workdir or using the -T
       and -S arguments. If -n workdir is given, the location of the secret file and the address:port are looked
       up in shared memory. If neither is given, varnishadm uses the -n defaults documented for varnishd(1).

       If a command is given, the command and arguments are sent over the CLI connection and the result returned
       on stdout.

       If no command argument is given varnishadm will pass commands and replies  between  the  CLI  socket  and
       stdin/stdout.

       Some ways you can use varnishadm:

          varnishadm -T localhost:999 -S /var/db/secret vcl.use foo
          echo vcl.use foo | varnishadm -T localhost:999 -S /var/db/secret
          echo vcl.use foo | ssh vhost varnishadm -T localhost:999 -S /var/db/secret

       If  a  command  is given, the exit status of the varnishadm utility is zero if the command succeeded, and
       non-zero otherwise.

       varnishadm - Control a running Varnish instance

-h     Print program usage and exit.

       -nworkdir
              Specify  the  varnish  working  directory  of the instance to attach to. See varnishd(1)-n option
              documentation for additional information and defaults.

       -p     Force  pass  mode   and   make   the   output   follow   the   VCLI   protocol.    This   disables
              command-history/command-completion and makes it easier for programs to parse the response(s).

       -Ssecretfile
              Specify  the  authentication  secret  file.  This  should  be the same -S argument as was given to
              varnishd. Only processes which can read the contents of this file, will be  able  to  authenticate
              the CLI connection.

       -T<address:port>
              Connect to the management interface at the specified address and port.

       -ttimeout
              Wait no longer than this many seconds for an operation to finish.

       The  syntax  and  operation  of  the actual CLI interface is described in the varnish-cli(7) manual page.
       Parameters are described in varnishd(1) manual page.

       Additionally, a summary of commands can be obtained by  issuing  the  help  command,  and  a  summary  of
       parameters can be obtained by issuing the param.show command.

       • varnishd(1)

       • varnish-cli(7)

       varnishadm [-h] [-n workdir] [-p] [-S secretfile] [-T [address]:port] [-t timeout] [command [...]]