k

ksh(1)

 

 

 

ksh(1)

 

noexec

Same as -n.

 

 

noglob

Same as -f.

 

 

nolog

Do not save function de®nitions in history ®le.

 

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 ®le and

uses the ®le

 

/etc/suid_profile instead of the ENV ®le. 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 -xand -voptions 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 -Ais speci®ed, 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:

-Lfile

True if ®le is a symbolic link.

file1

-ntfile2

True if ®le1 is newer than ®le2.

file1

-otfile2

True if ®le1 is older than ®le2.

file1

-effile2

True if ®le1 has the same device and i-node number as ®le2.

%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 executed 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 executed on exit from the shell. The trap command with no arguments prints a list of commands 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