opadownloadall
(Linux) Copies one or more files to a group of hosts from a
system. Since the file contents to copy may be different for each host, a
separate directory on this system is used for the source files for each
host. This can also be used in conjunction with opauploadall to upload a
host-specific configuration file, edit it for each host, and download the
new version to all the hosts.
NOTE: The tool opadownloadall can only copy from this
system to a group of hosts in the cluster. To copy files from hosts in the
cluster to this host, use opauploadall.
opadownloadall [-rp] [-f hostfile] [-d download_dir]
[-h 'HOSTS']
[-u user] source_file ... dest_file
- --help
- Produces full help text.
- -r
- Performs recursive download of directories.
- -p
- Performs copy in parallel on all hosts.
- -f hostfile
- Specifies the file with hosts in cluster. Default is /etc/opa/hosts.
- -d download_dir
- Specifies the directory to download files from. Default is downloads. If
not specified, the environment variable DOWNLOADS_DIR is used. If
that is not exported, the default is used.
- -h HOSTS
- Specifies the list of hosts to download files to.
- -u user
- Specifies the user to perform the copy. Default is the current user code.
-
NOTE: The user@ style syntax cannot be used in the
arguments to opadownloadall.
- source_file
- Specifies the list of source files to copy from the system.
- The option source_file is relative to
download_dir/hostname. A local directory within
download_dir/ must exist for each host being downloaded to. Each
downloaded file is copied from
download_dir/hostname/source_file.
- dest_file
- Specifies the name of the file or directory on the destination hosts to
copy to.
- If more than one source file is specified, dest_file is treated as
a directory name. The given directory must already exist on the
destination host. The copy fails for hosts where the directory does not
exist.
opadownloadall -h 'arwen elrond' irqbalance vncservers /etc
# Copies two files to 2 hosts
opadownloadall -p irqbalance vncservers /etc
# Copies two files to all hosts
The following environment variables are also used by this
command:
- HOSTS
- List of hosts; used if -h option not supplied.
- HOSTS_FILE
- File containing list of hosts; used in absence of -f and -h.
- FF_MAX_PARALLEL
- When the -p option is used, the maximum concurrent operations are
performed.
- DOWNLOADS_DIR
- Directory to download from, used in absence of -d.