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Nice syntax in csh on Solaris 10

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Operating Systems Solaris Nice syntax in csh on Solaris 10
# 1  
Old 01-14-2014
Nice syntax in csh on Solaris 10
Dear Solaris Experts,

I would like to set the lowest priority when running a resource intensive program in C shell on Solaris 10 similar to the following syntax that works in Korn shell:

Code:
$ nice -n 19 program

However, I got the following error when running the same command in C shell:

Code:
9 [servername] george % uname -a 
SunOS servername 5.10 Generic_144488-12 sun4v sparc SUNW,SPARC-Enterprise-T5220 
10 [servername] george % nice -n 19 program 
nice: Badly formed number


The man page looks identical to that in Korn shell.

Thanks,

George
Last edited by radoulov; 01-14-2014 at 06:17 AM..
# 2  
Old 01-14-2014
According to the man page, csh's nice implementation does not use the -n option
Code:
  csh Builtin
     nice [-increment | +increment]  [command]
...
     nice is also a csh built-in command with behavior  different
     from the utility versions.

# 3  
Old 01-14-2014
I guess OP misunderstood the man page usage:
Code:
nice [+n |-n] [command]

Actually you have to replace n with process priority value.
Code:
+n Increment the process priority value by n.
-n Decrement the process priority value by n.

So it should be:
Code:
nice -19  program

This User Gave Thanks to Yoda For This Post:
gjackson123
# 4  
Old 01-14-2014
Thanks to Yoda,

The syntax below worked in C shell:

Code:
nice -19 program

Many thanks to your help,

George
Last edited by Scott; 01-14-2014 at 08:17 PM.. Reason: Code tags, please....
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