On Tue, Jun 8, 2010 at 9:23 PM, Dan McGee <[email protected]> wrote: > We can also just do some bash string manipulation and leave sed out of > the picture: > > devnum=$(cat /sys/class/rtc/rtc0/dev) > /bin/mknod /dev/rtc0 c ${devnum/:/ } >
Since you're already using a ${foo/bar/baz} bashism, that's a useless
use of cat:
devnum=$(< /sys/class/rtc/rtc0/dev)
And the subshell is also unnecesary:
read -r devnum < /sys/class/rtc/rtc0/dev
The second one is posix...
Andres P
