Novell LINUX ENTERPRISE 11 - HIGH AVAILABILITY, Руководство пользователя, Страница: 192 / 298

Syntax/Description Command
Print the current working directory. With the
-P
option,
pwd
prints
the physical directory, without any symbolic links; the
-L
option makes
pwd
follow symbolic links.
read [-ers] [-u fd] [-t timeout] [-p prompt] [-a array] [-n
nchars] [-d delim] [NAME ...]
read
The given
NAME
s are marked readonly and the values of these
NAME
s
may not be changed by subsequent assignment. If the
-f
option is
given, then functions corresponding to the NAMEs are so marked. If
no arguments are given, or if
-p
is given, a list of all readonly names
is printed. The
-a
option means to treat each NAME as an array vari-
able. An argument of
--
disables further option processing.
readonly [-af] [NAME[=VALUE] ...]
readonly -p
readonly
The given
NAME
s are marked readonly and the values of these
NAME
s
may not be changed by subsequent assignment. If the
-f
option is
given, then functions corresponding to the
NAME
s are so marked. If
no arguments are given, or if
-p
is given, a list of all readonly names
is printed. The
-a
option means to treat each
NAME
as an array variable.
An argument of
--
disables further option processing.
return [N]
return
Causes a function to exit with the return value specified by
N
. If
N
is
omitted, the return status is that of the last command.
select NAME [in WORDS ... ;] do COMMANDS; done
select
The
WORDS
are expanded, generating a list of words. The set of ex-
panded words is printed on the standard error, each preceded by a
number. If
in WORDS
is not present,
in "$@"
is assumed. The
PS3
prompt is then displayed and a line read from the standard input. If
the line consists of the number corresponding to one of the displayed
words, then
NAME
is set to that word. If the line is empty,
WORDS
and
182 High Availability Guide