c********e
发帖数: 417 | 1 The shell script does the following:
if a certain process is not running, then start it.
I'm think of using 'ps-e|grep process', but I don't know how to test
if a string is empty.
Thanks. | d***c
发帖数: 21 | 2 there should be an easy way, but if you do 'ps -e|grep -c process', then you only need to check if the result is 0.
【在 c********e 的大作中提到】
: The shell script does the following:
: if a certain process is not running, then start it.
: I'm think of using 'ps-e|grep process', but I don't know how to test
: if a string is empty.
: Thanks.
| B**z
发帖数: 153 | 3 if ps -e |grep -c process > /dev/null;then
# do something
fi
【在 d***c 的大作中提到】
: there should be an easy way, but if you do 'ps -e|grep -c process', then you only need to check if the result is 0.
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