shaba/systemd-stable
1
1
Fork 0
mirror of https://github.com/systemd/systemd-stable.git synced 2024-10-30 23:21:08 +03:00
Code

udev man page: add operators

Browse Source 
Patch from: Hannes Reinecke <hare@suse.de>

Signed-off-by: Kay Sievers <kay.sievers@suse.de>
This commit is contained in:
Kay Sievers 2005-06-14 13:28:24 +02:00
parent 60d7b20100
commit 0fa98832b5
1 changed files with 30 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
udev.8.in
View File

@ -104,6 +104,36 @@ Every rule consists of a list of comma separated key value fields:
.sp
.IR "key " ,[ "key " ,...]
.P
Each key has the following format:
.sp
.IR "name op value"
.P
There are distinct key operation types, depending on the type of the key, it
does a comparison or an assignment.
.P
Comparison operators are:
.TP
.B ==
Compare for equality.
.TP
.B !=
Compare for non-equality.
.P
Assignment operators are:
.TP
.B +=
Add the value to a key that holds a list of entries.
.TP
.B :=
Assign a value to a key finally; disallow any later changes, which
is useful to prevent changes by any later rules.
.TP
.B =
Asign a value to a key. Keys that represent a list, are reset and only this
single value is assigned. While this operator still works inplicitely as
comparison on keys that can't get a value assigned, its usage as an comparison
operator is deprecated.
.P
The following key names can be used to match against device properties:
.TP
.B BUS