crontab is not working

[gahn]

hi:
i am trying to test a crontab job for snmpwalk but it is not working:
here is crontab:
*/1    *    *    *    *    root    /root/snmpwalk.sh

for the script, it is very simple:
#!/usr/local/bin/bash

/usr/local/bin/snmpwalk -v 2c -c public 100.10.10.10
from the log, i can see this

Mar  4 15:22:00 snails /usr/sbin/cron[88515]: (operator) CMD (/usr/libexec/save-entropy)
Mar  4 15:22:00 snails /usr/sbin/cron[88516]: (root) CMD (root^I/root/snmpwalk.sh)
Mar  4 15:23:00 snails /usr/sbin/cron[88531]: (root) CMD (root^I/root/snmpwalk.sh)
Mar  4 15:24:00 snails /usr/sbin/cron[88534]: (root) CMD (root^I/root/snmpwalk.sh)
thanks.

_dave