Shell script

ruby-talk
1

Hi All,

I have a shell script which I use to call a ruby program. I pass
parameters from the shell script to the ruby program

Example:

#!/bin/csh -f

set DEST_DIR=/home/vandana/
ruby test.rb -p $DEST_DIR

···

----------------------------------

When I execute the above, I get the error "Cannot convert nil to
String. I know that $DEST_DIR is not empty because when I do an echo
$DEST_DIR I see the /home/vandana/

What am I missing here?

----------------------------------------
If I put the command "ruby test.rb -p $DEST_DIR" in quotes I get the
message command not found.

Please help!
Thanks,

2

try this

ruby test.rb -p `echo $DEST_DIR`

···

On Sep 15, 7:36 pm, Vandana <nair...@gmail.com> wrote:

Hi All,

I have a shell script which I use to call a ruby program. I pass
parameters from the shell script to the ruby program

Example:

#!/bin/csh -f

set DEST_DIR=/home/vandana/
ruby test.rb -p $DEST_DIR

----------------------------------

When I execute the above, I get the error "Cannot convert nil to
String. I know that $DEST_DIR is not empty because when I do an echo
$DEST_DIR I see the /home/vandana/

What am I missing here?

----------------------------------------
If I put the command "ruby test.rb -p $DEST_DIR" in quotes I get the
message command not found.

Please help!
Thanks,

3

Vandana wrote in [ruby-talk:314963]:
At Mon, 15 Sep 2008 23:32:48 +0900,

If I put the command "ruby test.rb -p $DEST_DIR" in quotes I get the
message command not found.

It's strange.
Don't you have another "ruby" command written in shell script?

···

--
Nobu Nakada

4

use

ruby test.rb -p `echo DEST_DIR`

···

On Sep 15, 7:39 pm, samba <cooldudevam...@gmail.com> wrote:

On Sep 15, 7:36 pm, Vandana <nair...@gmail.com> wrote:

> Hi All,

> I have a shell script which I use to call a ruby program. I pass
> parameters from the shell script to the ruby program

> Example:

> #!/bin/csh -f

> set DEST_DIR=/home/vandana/
> ruby test.rb -p $DEST_DIR

> ----------------------------------

> When I execute the above, I get the error "Cannot convert nil to
> String. I know that $DEST_DIR is not empty because when I do an echo
> $DEST_DIR I see the /home/vandana/

> What am I missing here?

> ----------------------------------------
> If I put the command "ruby test.rb -p $DEST_DIR" in quotes I get the
> message command not found.

> Please help!
> Thanks,

try this

ruby test.rb -p `echo $DEST_DIR`

5

Thanks samba.
I exited from the shell and re logged in..now it works even without
the echo...strange

Thanks a lot.

···

On Sep 15, 10:43 am, samba <cooldudevam...@gmail.com> wrote:

On Sep 15, 7:39 pm, samba <cooldudevam...@gmail.com> wrote:

> On Sep 15, 7:36 pm, Vandana <nair...@gmail.com> wrote:

> > Hi All,

> > I have a shell script which I use to call a ruby program. I pass
> > parameters from the shell script to the ruby program

> > Example:

> > #!/bin/csh -f

> > set DEST_DIR=/home/vandana/
> > ruby test.rb -p $DEST_DIR

> > ----------------------------------

> > When I execute the above, I get the error "Cannot convert nil to
> > String. I know that $DEST_DIR is not empty because when I do an echo
> > $DEST_DIR I see the /home/vandana/

> > What am I missing here?

> > ----------------------------------------
> > If I put the command "ruby test.rb -p $DEST_DIR" in quotes I get the
> > message command not found.

> > Please help!
> > Thanks,

> try this

> ruby test.rb -p `echo $DEST_DIR`

use

ruby test.rb -p `echo DEST_DIR`