How to execute content of var in Shell Script

[jhopmann2000]

Hi all,

In a shell script I tried to create a command saved in avariable called CMD.
The value of CMD is fine and I can echo it and I can execute it manually in the shell (e.g. bash)

The script is:
--------------------------------------------
CMD="$PS -ef | grep \"archpro -i $INSTANCEFILE\" | grep -v grep"
echo ${CMD}
$CMD
--------------------------------------------

The output is the following:

/usr/bin/ps -ef | grep "archpro -i /opt/cssap/instanz/P12/P12.ini" | grep -v grep
usage: ps [ -aAdeflcjLPy ] [ -o format ] [ -t termlist ]
[ -u userlist ] [ -U userlist ] [ -G grouplist ]
[ -p proclist ] [ -g pgrplist ] [ -s sidlist ]
'format' is one or more of:


So if I execute the whole command manually, it lists me exactly one process.
In the script it seems that ps is called but gets no arguments or too many arguments?

Can you help me in getting the right syntax for my command?

Kindest regards .joerg

[Franklin52]

Hi,

Use eval to evaluate the commands:

CMD="$PS -ef | grep \"archpro -i $INSTANCEFILE\" | grep -v grep"
echo $CMD
eval $CMD

Regards