Command Reference Guide
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STANDARD Printed by: Nora Chuang [nchuang] STANDARD
/build/1111/BRICK/man1/!!!intro.1
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k
ksh(1) ksh(1)
noexec Same as -n.
noglob Same as -f.
nolog Do not save function definitions in history file.
nounset Same as -u.
privileged Same as -p.
verbose Same as -v.
trackall Same as -h.
vi Activates the insert mode of a vi-style in-line editor
until you press the ESC key which puts you in move mode.
A return sends the line.
viraw Each character is processed as it is typed in vi mode.
xtrace Same as -x.
-p Disables processing of the $HOME/.profile file and uses the file
/etc/suid_profile instead of the ENV file. This mode is on whenever
the effective uid (gid) is not equal to the real uid (gid). Turning this off causes
the effective uid and gid to be set to the real uid and gid.
-s Sort the positional parameters.
-t Exit after reading and executing one command.
-u Treat unset parameters as an error when substituting.
-v Print shell input lines as they are read.
-x Print commands and their arguments as they are executed.
- Turns off -x and -v options and stops examining arguments for options.
-- Do not change any of the options; useful in setting $1 to a value beginning
with -. If no arguments follow this option, the positional parameters are
unset.
Using + instead of - before a option causes the option to be turned off. These options can
also be used when invoking the shell. The current set of options can be examined by using
$-.
Unless -A is specified, the remaining arg arguments are positional parameters and are
assigned consecutively to $1, $2
, .... If neither arguments nor options are given, the
values of all names are printed on the standard output.
% shift [n] The positional parameters from $n+1 ... are renamed $1
...; default n is 1. The parame-
ter n can be any arithmetic expression that evaluates to a non-negative number less than or
equal to
$#.
test [expr] Evaluate conditional expression expr. See test(1) for usage and description. The arithmetic
comparison operators are not restricted to integers. They allow any arithmetic expression.
Four additional primitive expressions are allowed:
-L file True if file is a symbolic link.
file1 -nt file2 True if file1 is newer than file2.
file1 -ot file2 True if file1 is older than file2.
file1 -ef file2 True if file1 has the same device and i-node number as file2.
% times Print the accumulated user and system times for the shell and for processes run from the
shell.
% trap [arg][sig ...]
arg is a command read and executed when the shell receives signal(s) sig. (Note that arg is
scanned once when the trap is set and once when the trap is taken.) Each sig can be given
as a number or name of the signal. Trap commands are executed in signal number order.
Any attempt to set a trap on a signal that was ignored upon entering the current shell has
no effect. If arg is omitted or is
-, all traps for sig are reset to their original values. If arg
is the null string, this signal is ignored by the shell and by the commands it invokes. If sig
is DEBUG, arg is executed after each command. If sig is ERR, arg is executed whenever a
command has a non-zero exit code. If sig is 0 or EXIT and the trap statement is exe-
cuted inside the body of a function, the command arg is executed after the function com-
pletes. If sig is 0 or EXIT for a trap set outside any function, the command arg is exe-
cuted on exit from the shell. The trap command with no arguments prints a list of com-
mands associated with each signal number.
%% typeset [±LRZfilrtux [n]][name[=value]] ...
Parameter assignments remain in effect after the command completes. When invoked
Section 1−−410 − 15 − HP-UX Release 11i: December 2000
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