строки escape для использования в именах модулей systemd (Escape strings for usage in systemd unit names)
Имя (Name)
systemd-escape - Escape strings for usage in systemd unit names
Синопсис (Synopsis)
systemd-escape [OPTIONS...] [STRING...]
Описание (Description)
systemd-escape may be used to escape strings for inclusion in
systemd unit names. The command may be used to escape and to undo
escaping of strings.
The command takes any number of strings on the command line, and
will process them individually, one after another. It will output
them separated by spaces to stdout.
By default, this command will escape the strings passed, unless
--unescape is passed which results in the inverse operation being
applied. If --mangle is given, a special mode of escaping is
applied instead, which assumes the string is already escaped but
will escape everything that appears obviously non-escaped.
For details on the escaping and unescaping algorithms see the
relevant section in systemd.unit(5).
Параметры (Options)
The following options are understood:
--suffix=
Appends the specified unit type suffix to the escaped string.
Takes one of the unit types supported by systemd, such as
"service" or "mount". May not be used in conjunction with
--template=, --unescape or --mangle.
--template=
Inserts the escaped strings in a unit name template. Takes a
unit name template such as foobar@.service. With --unescape,
expects instantiated unit names for this template and
extracts and unescapes just the instance part. May not be
used in conjunction with --suffix=, --instance or --mangle.
--path, -p
When escaping or unescaping a string, assume it refers to a
file system path. This eliminates leading, trailing or
duplicate "/" characters and rejects "." and ".." path
components. This is particularly useful for generating
strings suitable for unescaping with the "%f" specifier in
unit files, see systemd.unit(5).
--unescape, -u
Instead of escaping the specified strings, undo the escaping,
reversing the operation. May not be used in conjunction with
--suffix= or --mangle.
--mangle, -m
Like --escape, but only escape characters that are obviously
not escaped yet, and possibly automatically append an
appropriate unit type suffix to the string. May not be used
in conjunction with --suffix=, --template= or --unescape.
--instance
With --unescape, unescape and print only the instance part of
an instantiated unit name template. Results in an error for
an uninstantiated template like ssh@.service or a
non-template name like ssh.service. Must be used in
conjunction with --unescape and may not be used in
conjunction with --template.
-h, --help
Print a short help text and exit.
--version
Print a short version string and exit.
Примеры (Examples)
To escape a single string:
$ systemd-escape 'Hallöchen, Meister'
Hall\xc3\xb6chen\x2c\x20Meister
To undo escaping on a single string:
$ systemd-escape -u 'Hall\xc3\xb6chen\x2c\x20Meister'
Hallöchen, Meister
To generate the mount unit for a path:
$ systemd-escape -p --suffix=mount "/tmp//waldi/foobar/"
tmp-waldi-foobar.mount
To generate instance names of three strings:
$ systemd-escape --template=systemd-nspawn@.service 'My Container 1' 'containerb' 'container/III'
systemd-nspawn@My\x20Container\x201.service systemd-nspawn@containerb.service systemd-nspawn@container-III.service
To extract the instance part of an instantiated unit:
$ systemd-escape -u --instance 'systemd-nspawn@My\x20Container\x201.service'
My Container 1
To extract the instance part of an instance of a particular
template:
$ systemd-escape -u --template=systemd-nspawn@.service 'systemd-nspawn@My\x20Container\x201.service'
My Container 1
Статус выхода (Exit)
On success, 0 is returned, a non-zero failure code otherwise.
Смотри также (See also)
systemd(1), systemd.unit(5), systemctl(1)
