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Works on command line but not in script; vncserver on solaris 10

 
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Top Forums UNIX for Dummies Questions & Answers Works on command line but not in script; vncserver on solaris 10
# 1  
Old 04-26-2012
Data Works on command line but not in script; vncserver on solaris 10
Hi guys. My first post, so be gentle...
On my Solaris 10 machine vnc server is running. I need a command to extract most recent client session number (screen). So with:
Code:
Code:
bash-3.2# ps -ef | grep vnc | grep Xaut
    root 19805 19797   0 15:41:44 ?           0:01 Xvnc :4 -inetd -once -securitytypes=none -desktop Infinera DNA -auth //.Xauthor
    root 19785 19777   0 15:41:24 ?           0:01 Xvnc :3 -inetd -once -securitytypes=none -desktop Infinera DNA -auth //.Xauthor
    root 19765 19757   0 15:41:00 ?           0:01 Xvnc :2 -inetd -once -securitytypes=none -desktop Infinera DNA -auth //.Xauthor


I can see them all. Then with
Code:
Code:
bash-3.2# ps -ef | grep vnc | grep Xau| sort -k4 | tail -1 | awk '{print $9}' | tr -d ':'
4

I get what I need - just number 4. I've created few Firefox profiles called vnc1, vnc2, vnc3 and vnc4. Now I am trying to use above command to choose the profile name which correlates with session number in firefox command in /.vnc/xstarup:
Code:
Code:
#!/bin/sh

[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
xsetroot -solid grey
twm &
firefox -P vnc$(ps -ef | grep vnc | grep Xau| sort -k4 | tail -1 | awk '{print $9}' | tr -d ':') &

However Firefox is not deriving correct profile name from the command. For this example it should be - firefox -P vnc4
Vnc is showing this error in the log file:
Code:
Code:
  //.vnc/xstartup: syntax error at line 6: `)' unexpected

Could you please let me know what's wrong with firefox command syntax?
Cheers,
cp6uja
Moderator's Comments:
Mod Comment Code tags for code, please.
# 2  
Old 04-26-2012
Use #!/bin/bash instead of #!/bin/sh.
This User Gave Thanks to bartus11 For This Post:
cp6uja
# 3  
Old 04-26-2012
To keep the forums high quality for all users, please take the time to format your posts correctly.

First of all, use Code Tags when you post any code or data samples so others can easily read your code. You can easily do this by highlighting your code and then clicking on the # in the editing menu. (You can also type code tags [code] and [/code] by hand.)



Second, avoid adding color or different fonts and font size to your posts. Selective use of color to highlight a single word or phrase can be useful at times, but using color, in general, makes the forums harder to read, especially bright colors like red.

Third, be careful when you cut-and-paste, edit any odd characters and make sure all links are working property.

Thank You.

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# 4  
Old 04-26-2012
When you type that code into your terminal, you are using bash.

When you run that from a script, you are using /bin/sh, which may be something totally different, something that doesn't understand $( ) syntax, only backticks ` `.
This User Gave Thanks to Corona688 For This Post:
cp6uja
# 5  
Old 04-26-2012
Many thanks guys. Now it looks so obvious, but I would've never thought of it myself.
# 6  
Old 04-26-2012
(The other posters have diagnosed this problem correctly).
On Solaris 10 the /bin/sh is the original Bourne Shell which does not recognise many of the Shell extensions which are available in bash and ksh . On other modern unix Operating Systems you can find that /bin/sh is actually the Posix Shell or on many Linux systems it is bash.
 
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