06-08-2009
Thank you for the reply. Sorry I haven't replied to this sooner but I've been out.
The link provided simply says to look at the man page for setting shell options for your particular shell. Well, that was the first thing I did when I was trying to figure this out. Unfortunately, the man pages for bash and ksh do not detail exactly which letter is associated with which shell option, and the letter is certainly not the first letter of the option itself. Some of them are obvious, like 'i' for interactive shell. Some I could figure out by turning off an option and looking to see what letter no longer existed when echoing $-. Unfortunately some of the options could not be determined this way. And I'm still trying to figure out what little 'c' means (in addition to some others).
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NICE(1) User Commands NICE(1)
NAME
nice - run a program with modified scheduling priority
SYNOPSIS
nice [OPTION] [COMMAND [ARG]...]
DESCRIPTION
Run COMMAND with an adjusted niceness, which affects process scheduling. With no COMMAND, print the current niceness. Niceness values
range from -20 (most favorable to the process) to 19 (least favorable to the process).
Mandatory arguments to long options are mandatory for short options too.
-n, --adjustment=N
add integer N to the niceness (default 10)
--help display this help and exit
--version
output version information and exit
NOTE: your shell may have its own version of nice, which usually supersedes the version described here. Please refer to your shell's docu-
mentation for details about the options it supports.
AUTHOR
Written by David MacKenzie.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report nice translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
nice(2), renice(1)
Full documentation at: <http://www.gnu.org/software/coreutils/nice>
or available locally via: info '(coreutils) nice invocation'
GNU coreutils 8.28 January 2018 NICE(1)