The crontab and shell execution results are different.

Crontab and shell run results are different-Linux general technology-Linux technology and application information. The following is a detailed description. [I = s] This post was last edited by FUJI at, 2011-2-28

Shell

CODE :#! /Bin/bash Service httpd status &>/dev/null If [$? -Ne 0] Then Day = 'date "+ % F % R "' Echo "service httpd is down at $ day">/var/log/htmon.txt Service httpd restart Service httpd status &>/dev/null If [$? -Ne 0] Then Chkconfig -- level 2345 httpd on Else Echo "httpd is running now ..." Fi Fi