linux, start command (with switch user) stored in variable

Question

Whats wrong here? The echo shows the correct syntax. Please help, thank you.

#!/bin/ksh
CMD="su - db2i72 -c 'db2 list utilities'" # or this
CMD="su - db2i72 -c \'db2 list utilities\'" # or this 
CMD="su - db2i72 -c \"db2 list utilities\"" # or this, always the same...

echo $CMD

$CMD

root@server:~ # ./test
su - db2i72 -c 'db2 list utilities'
Unmatched '.

what happens if u type in su - db2i72 -c 'db2 list utilities' — ddoor, Nov 23 '13 at 15:27
#!/bin/ksh su - db2i72 -c 'db2 list utilities' -> works fine — xyn, Nov 23 '13 at 16:21
possible duplicate of [How to store a command in a variable in Linux?](http://stackoverflow.com/questions/5615717/how-to-store-a-command-in-a-variable-in-linux) — Gilles 'SO- stop being evil', Nov 23 '13 at 16:33

score 0 · Accepted Answer · answered Nov 23 '13 at 16:36

0

Store commands in functions, not variables. You don't have to worry about quoting at all if you use a function.

cmd() {
    su - db2i72 -c 'db2 list utilities'
}

cmd

answered Nov 23 '13 at 16:36

John Kugelman

349,597
67
533
578

linux, start command (with switch user) stored in variable

1 Answers1