HP-UX Reference (11i v3 07/02) - 1 User Commands A-M (vol 1)

ManualsBrandsHP ManualsSoftwareHP-UX Reference Manuals

341

342

343

344

345

346

347

348

349

350

ex(1) ex(1)

variable. If the variable is not set,

ex shall attempt to read commands from the $HOME/.exrc . If and

only if

EXINIT or $HOME/.exrc sets the editor option exrc, ex ﬁnally shall attempt to read commands

from a ﬁle .exrc in the current directory. In the event that

EXINIT is not set and the current direc-

tory is the home directory of the user, any

.exrc ﬁle shall only be processed once. No .exrc shall be

read unless it is owned by the same user ID as the effective user ID of the process. After any

.exrc ﬁles

are processed, any commands speciﬁed by the

-c option shall be processed.

By default,

ex shall start in the command mode, which shall be indicated by the ":" prompt. The input

mode can be entered by append,

insert,orchange commands. There is one other mode, visual mode,

in which full screen editing is available. This is described more fully under the

visual command. The

command line can consist of multiple

commands separated by vertical-line characters(|). The use of

commands that enter input or visual modes in this manner, unless they are the ﬁnal command on the line,

produces undeﬁned results.

Command lines beginning with the double-quote character (") shall be ignored. This can be used for com-

ments in an editor script.

WARNINGS

The

undo command causes all marks to be lost on lines that are changed and then restored.

The z command prints a number of logical rather than physical lines. More than a screenful of output can

result if long lines are present.

Null characters are discarded in input ﬁles and cannot appear in resultant ﬁles.

On some systems, the recovery of an edit ﬁle with the -r option is possible only if certain system-

dependent actions are taken when the system is restarted.

Edit preserve ﬁles can only be recovered on systems running the same HP-UX release in which they were

preserved. Preserve ﬁles are not recoverable across different releases.

On HP terminals, the attribute ﬁeld of any function key speciﬁed by a map #

n ... command should be set

normal rather than to the default of transmit.

Do not use the -C option to edit unencrypted ﬁles. The -C option is meant to be used only on ﬁles that are

already encrypted. If the -C option is used on ﬁles which are not yet encrypted, a write in the edit session

is likely to corrupt the ﬁle.

For information about line length limits, ﬁle size limits, etc., see the WARNINGS section of vi(1).

EXIT STATUS (UNIX Standard Only)

For information about the UNIX standard environment, see standards(5).

The

ex utility shall exit with one of the following values:

0 Successful completion.

>0 An error occurred.

AUTHOR

ex was developed by the University of California, Berkeley. The 16-bit extensions to ex are based in part

on software of the Toshiba Corporation.

FILES

$HOME/.exrc Primary editor initialization ﬁle

./.exrc Secondary editor initialization ﬁle

/usr/lbin/expreserve Preserve command

/usr/lbin/exrecover Recover command

/usr/share/lib/terminfo/*/* Description of terminal capabilities

/var/preserve Preservation directory

/var/tmp/Ex * Editor temporary ﬁle

/var/tmp/Rx * Named buffer temporary ﬁle