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Help on shell script

Help on shell script# Unix - 噫吁兮，危乎高哉

c*e2001-07-29 07:07

1 楼

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*c2001-07-29 07:07

2 楼

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.