[PATCH] remove usage of expr in ide-devfs.sh

[elogind.git] / udev.8

diff --git a/udev.8 b/udev.8
index 84b08488fe48eaa62511404597c44d3fa7bec146..e449ef8dbb37c95c228db215aed830bd33fbb445 100644 (file)
--- a/udev.8
+++ b/udev.8
@@ -182,8 +182,7 @@ all of the values being required in order to match the rule.
 .TP
 .B PROGRAM
 Call external program. This key is valid if the program returns successful.
-A few command line options may specified, but shell characters like pipe,
-diversion or similiar options are not available. The environment variables of
+The environment variables of
 .B udev
 are also available for the program.
 .br
@@ -210,7 +209,7 @@ fields support simple printf-like string substitution:
 .TP
 .B %n
 The "kernel number" of the device.
-for example, 'sda3' has a "kernel number" of '3'
+For example, 'sda3' has a "kernel number" of '3'.
 .TP
 .B %k
 The "kernel name" for the device.
@@ -240,7 +239,11 @@ my be selected by specifying the part number as a attribute:
 The content of a sysfs attribute.
 .TP
 .B %%
-The '%' char itself.
+The '%' character itself.
+.P
+The count of charcters to insert may be limited by specifying
+the format length value. For example, '%3s{file}' will only insert
+the first three characters of the sysfs attribute.
 .P
 .RI "A sample " udev.rules " might look like this:"
 .sp