Posted: Mon Oct 19, 2015 2:35 Post subject: Ash scripting "not found" error
I'm writing a script that will enable and disable internet access (on a timed basis) specific IP addresses on my internal network. The list of IPTABLES commands comes in as a "~" delimited list and my code loops through them and executes them in sequence.
The problem I'm having is that when the script goes to execute the command, a "not found" error is returned but when I copy and paste the command into the command line while telnet[ed] on router, the command works.
Script (loop):
Code:
fw_cmd_res="/usr/sbin/iptables -D FORWARD -s 192.168.69.112 -j DROP~/usr/sbin/iptables -D FORWARD -s 192.168.69.113 -j DROP"
IFS="~"
for cmd in $fw_cmd_res
do
echo "cmd: $cmd"
fw_cmd_res=$($cmd)
done
Results (with error):
Code:
cmd: /usr/sbin/iptables -D FORWARD -s 192.168.69.112 -j DROP
./requestor: line 61: /usr/sbin/iptables -D FORWARD -s 192.168.69.112 -j DROP: not found
I've even tried to write code as follows (to rule out an issue in the loop and the data passed):
Posted: Wed Oct 28, 2015 0:41 Post subject: Update: a hack of a solution but it appears to work
So... since I seemed to have stumped everyone I had to channel the power of dump luck. This is a complete 100% hack that I really believe I lucked into...
So... executing the command directly in the script was giving me a "not found". So... I "echo"ed it out to am executable script file on the file system in the same folder. Then I did an "sh" on that file using the full path and it worked. Seems dumb, but it work.
Really the fix leads me to believe I just have some sort of syntax error, but I'm not 1337 enough to know what it is. Please post a real fix if you find one.
Code:
IFS="~"
for cmd in $fw_cmd_res
do
echo "cmd: $cmd"
fw_cmd_res=$(echo "$cmd" > /jffs/webControl/cmd)
fw_cmd_res=$(sh /jffs/webControl/cmd)
done
