On Thu, 12 Dec 2013, Craig Sanders wrote:
On Thu, Dec 12, 2013 at 10:33:32PM +1100, Allan Duncan wrote:
I have a rc.local script that runs fine in csh, but I'd like to change it to sh, but I've had no success at it.
#! /usr/bin/tcsh if `ping -w 1 -c 1 -n 192.168.1.3 | grep -o "1 packets"` == "1 packets" mount /nfs/bulk2
the simplest conversion to sh (with some fixes*) would be something like:
#!/bin/sh if $(ping -w 1 -c 1 -n 192.168.1.3 | grep -q "1 packets") ; then mount /nfs/bulk2 fi
bash only. (ie, #!/bin/bash)
or as a one-liner:
#!/bin/sh ping -w 1 -c 1 -n 192.168.1.3 | grep -q "1 packets" && mount /nfs/bulk2
* fixes:
1. backticks are pretty much deprecated. use $(...) instead - it's clearer/more readable, avoids most shell quoting/escaping problems, and can be nested.
Um, no, as I've said before, $() is a bashism. Yes it is neater, but try running that on HP-UX and see how well you go. -- Tim Connors