some command doesn't work in linux box

[nayak]

Hai
When i am giving below command in redHat linux 6.2 box it is showing some errors. pasted below. Can somebody tell me the what could be the problem and how to solve.

[root@sbd server4]# ps -ef|grep slapd

2321 ? S 0:00 \_ grep slapd LESSOPEN=|/usr/bin/lesspipe.sh %s USERNAME=r
[root@sbd server4]#

expecting a favourable reply at the earliest

 

[jboh1]

"ps -ef|grep slapd "
is the same as "ps -e -f|grep slapd"
The "-e" and "-f" options in the linux may be contradictory to the options already aliased to "ps"

find out what these are with
#% which ps

bet there is an "x" option aliased in.

from the manual:
x Select processes without controlling ttys

which would account for the environment data listed after the basic process listing

Also, I've learned that a space between options and a pipe is less confusing to the bash shell.

so,if ps is in /bin/ , a safer version might be

"/bin/ps -ef |grep slapd"