# Capistrano run problem

**URL:** <https://www.ruby-forum.com/t/capistrano-run-problem/89841>\
**Category:** Rails\
**Created:** [March 23, 2007, 3:51am UTC](https://www.ruby-forum.com/t/capistrano-run-problem/89841 "2007-03-23T03:51:44Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Radu\_S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/ec9cab/32.png) [@Radu\_S](https://www.ruby-forum.com/u/Radu_S)\
**Post date:** [March 23, 2007, 3:51am UTC](https://www.ruby-forum.com/t/capistrano-run-problem/89841/1 "2007-03-23T03:51:44Z")

</div>

I am trying to use run to reload a small program in after\_deploy, it  
goes something like this:

```
    run <<-CMD
            if [[-f #{shared_path}/pids/program.pid]]; then
                    pid=$(cat #{shared_path}/pids/program.pid)
                    if [[$pid]]; then
                            kill -9 $pid
                    fi
            fi
            cd #{release_path}/vendor/cli && ./program.rb"
    CMD

```

When I run cap deploy it sends something like:

- executing “if [[-f /home/yyy.com/shared/pids/dprogram.pid]]; then  
\n\t\t\tpid=$(cat /home/yyy.com/shared/pids/program.pid)\n\t\t\tif  
[[$pid]]; then\n\t\t\t\tkill -9 $pid\n\t\t\tfi\n\t\tfi\n\t cd /  
home/yyy.com/releases/20070323023501/vendor/cli && ./program.rb”

Which returns something like:  
\*\* [out :: [www.yyy.com](http://www.yyy.com)] bash: -c: line 3: syntax error near  
unexpected token `then' ** [out :: www.yyy.com] bash: -c: line 3: `  
kill -9 $pid'  
command finished

Those commands work if not passed via capistrano. Any ideas on how to  
fix this?

- Radu

---

<div class="post-metadata">

**Author:** ![Radu\_S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/ec9cab/32.png) [@Radu\_S](https://www.ruby-forum.com/u/Radu_S)\
**Post date:** [March 23, 2007, 6:12am UTC](https://www.ruby-forum.com/t/capistrano-run-problem/89841/2 "2007-03-23T06:12:53Z")

</div>

On Mar 22, 2007, at 10:49 PM, Radu S. wrote:

> ```
> cd #{release_path}/vendor/cli && ./program.rb"
> 
> ```
> 
> \*\* [out :: [www.yyy.com](http://www.yyy.com)] bash: -c: line 3: syntax error near  
> unexpected token `then' ** [out :: www.yyy.com] bash: -c: line 3: `  
> kill -9 $pid'  
> command finished
> 
> Those commands work if not passed via capistrano. Any ideas on how to  
> fix this?
> 
> - Radu

```
     run <<-CMD
             if [[-f #{shared_path}/pids/program.pid]]; then
                     pid=$(cat #{shared_path}/pids/program.pid) ;
                     if [[$pid]]; then
                             kill -9 $pid ;
                     fi ;
             fi ;
             (cd #{release_path}/vendor/cli && ./program.rb)"
     CMD

```

Try it with the extra ‘;’ and the ( ) around the last command. The  
whole string has to be parsable by the shell as if you typed it on a  
single line. The ()'s force a subshell for the last part and keep  
the && from associating in a way you might not expect (perhaps not  
now, but later if you add other commands).

You can probably replace -f with -s, “cat” with “\<”, and remove the  
‘if/fi’ around the kill command.  
Heck, you might as well try:

```
     run <<-CMD
        if [[-s #{shared_path}/pids/program.pid]]; then
            kill -9 $(< #{shared_path}/pids/program.pid) ;
        fi ;
        (cd #{release_path}/vendor/cli && ./program.rb)"
     CMD

```

(but try the small changes first to see for yourself)

-Rob

Rob B. [http://agileconsultingllc.com](http://agileconsultingllc.com)  
removed\_email\_address@domain.invalid