Linux in a Nutshell, Fifth Edition

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Chapter 3: Linux Commands

This is the Title of the Book, eMatter Edition

Copyright © 2006 O’Reilly & Associates, Inc. All rights reserved.

rc Server request reply cache.

rpc Same as -r.

-z Reset statistics to zero. Use with above options to zero out

specific sets of statistics (e.g. -zr to reset the RPC statistics.)

nice

nice [option] [command [arguments]]

Execute a command (with its arguments) with lower priority (i.e.,

be “nice” to other users). With no command, nice prints the

current scheduling priority (niceness). If nice is a child process, it

prints the parent process’s scheduling priority. Niceness has a

range of -20 (highest priority) to 19 (lowest priority).

Options

--help

Print a help message and then exit.

-n adjustment, -adjustment, --adjustment=adjustment

Run command with niceness incremented by adjustment

(1–19); default is 10. A privileged user can raise priority by

specifying a negative adjustment (e.g., -5).

--version

Print version information and then exit.

nm

nm [options] [objfiles]

Print the symbol table in alphabetical order from one or more

object files. If no object files are specified, perform operations on

a.out. Output includes each symbol’s value, type, size, name, and

so on. A key letter categorizing the symbol can also be displayed.

Options

-a, --debug-syms

Print debugger symbols.

--defined-only

Display only defined symbols.

-f format, --format=format

Specify output format (bsd ...