topic Re: sh: ls: Execute permission denied. in Operating System - HP-UX

sh: ls: Execute permission denied.

Peter Kovacs 1.0rc — Sat, 16 Feb 2008 16:51:26 GMT

Hi

Executing the following command gives the error in the Subject:

# su - a_user ls

a_user can, of course, properly execute ls, when "logged in" via

# su - a_user

Thanks
Peter

Re: sh: ls: Execute permission denied.

Robert-Jan Goossens_1 — Sat, 16 Feb 2008 17:08:15 GMT

Peter,

# su -a_user -c 'ls'

Robert-Jan

Re: sh: ls: Execute permission denied.

Peter Kovacs 1.0rc — Sat, 16 Feb 2008 19:33:33 GMT

Thanks, working fine.

I just wonder how arguments with spaces can be then passed to su. Using perhaps double quotes?

Thanks
Peter

Re: sh: ls: Execute permission denied.

James R. Ferguson — Sat, 16 Feb 2008 20:17:52 GMT

Hi Peter:

> I just wonder how arguments with spaces can be then passed to su. Using perhaps double quotes?

Yes. For example:

# su - a_user -c 'grep "RFC 1078" /etc/services|more'

...or:

# su - root -c "grep 'RFC 1078' /etc/services|more"

Regards!

...JRF...

Re: sh: ls: Execute permission denied.

Peter Kovacs 1.0rc — Sat, 16 Feb 2008 20:25:04 GMT

Let me press on about this. What if I want to pass a command with environment variable expansion onto su? I surely cannot use single quotes, can I?

Thanks
Peter

Re: sh: ls: Execute permission denied.

Hein van den Heuvel — Sat, 16 Feb 2008 21:34:06 GMT

Peter,

Do you want use a variable from the current environment?
That's just normal substitution:

$ export test="/tmp"
$ echo $test
/tmp
$ su - hein -c "ls $test"
:

Or do you want to use a variable as defined in the profile for the user switch to? Like a $ORA_HOME or such?
Then you have to make sure the ${symbol_name} is not picked up by the current shell. Two basic ways, as indicated before. Which one is best, depends on how many other variables are used:

$ grep my_name ~hein/.profile
export my_name="Hein van den Heuvel"
:

$ su - hein -c 'echo "my name is " $my_name'
my name is Hein van den Heuvel
:

$ su - hein -c "echo 'my name is ' \$my_name"
my name is Hein van den Heuvel
:

hth,
Hein.

Re: sh: ls: Execute permission denied.

Peter Kovacs 1.0rc — Sat, 16 Feb 2008 22:42:51 GMT

Use quotes as detailed in the respective replies to my questions.