mirror of
git://git.code.sf.net/p/cdesktopenv/code
synced 2025-03-09 15:50:02 +00:00
(k)sh.1: invocation-related edits for clarity and completeness
This commit is contained in:
parent
b9d10c5a9c
commit
777dfa3e59
1 changed files with 44 additions and 10 deletions
|
@ -3940,8 +3940,8 @@ redefined for each instance.
|
|||
.PP
|
||||
When a type is defined a special built-in command of that name
|
||||
is added. These built-ins are declaration commands and follow the
|
||||
same expansion rules as all the special built-in commands defined
|
||||
below that are preceded by \(dg\(dg. These commands can subsequently
|
||||
same expansion rules as the built-in commands described below
|
||||
that are marked with a \(dd symbol. These commands can subsequently
|
||||
be used inside further type definitions. The man page for these commands can
|
||||
be generated by using the
|
||||
.B \-\-man
|
||||
|
@ -7054,7 +7054,7 @@ to fail or zero if no command has failed.
|
|||
.TP 8
|
||||
.B posix
|
||||
Enable full POSIX standard compliance mode. This option
|
||||
is on by default if ksh is invoked as \fBsh\fR. It
|
||||
is on by default if ksh is invoked as \fBsh\fR, \fBrsh\fR, or \fBpfsh\fR. It
|
||||
disables passing exported variables' attributes (such as integer or readonly) to a new ksh process through the environment,
|
||||
causes file descriptors > 2 to be left open when invoking another program,
|
||||
makes the \fB<>\fR redirection operator default to standard input,
|
||||
|
@ -8046,14 +8046,48 @@ all interpretations of the given name to be reported.
|
|||
.SS Invocation.
|
||||
If the shell is invoked by
|
||||
.IR exec (2),
|
||||
and the first character of argument zero
|
||||
initialization depends on argument zero
|
||||
.RB ( $0 )
|
||||
as follows.
|
||||
If the first character of
|
||||
.B $0
|
||||
is
|
||||
.BR \- ,
|
||||
or the
|
||||
.B \-l
|
||||
option is given on the invocation command line,
|
||||
then the shell is assumed to be a
|
||||
.I login
|
||||
shell and
|
||||
commands are read from
|
||||
shell.
|
||||
If the basename of the command path in
|
||||
.B $0
|
||||
is
|
||||
.BR rsh ,
|
||||
.BR rksh ,
|
||||
or
|
||||
.BR krsh ,
|
||||
then the shell becomes restricted.
|
||||
If it is
|
||||
.BR pfsh
|
||||
or
|
||||
.BR pfksh ,
|
||||
then the shell becomes a profile shell (see
|
||||
.IR pfexec (1)).
|
||||
If the basename is
|
||||
.BR sh ,
|
||||
.BR rsh ,
|
||||
or
|
||||
.BR pfsh ,
|
||||
or the
|
||||
.B \-o\ posix
|
||||
option is given on the invocation command line, then
|
||||
the shell is initialized in full POSIX compliance mode
|
||||
(see the
|
||||
.B set
|
||||
builtin command above for more information).
|
||||
After this, if the shell was assumed to be a
|
||||
.I login
|
||||
shell, commands are read from
|
||||
.B /etc/profile
|
||||
and then from either
|
||||
.B .profile
|
||||
|
@ -8062,12 +8096,12 @@ in the current directory or
|
|||
if either file exists.
|
||||
Next, for interactive shells, commands are read from
|
||||
the file named by
|
||||
performing parameter expansion, command substitution,
|
||||
and arithmetic substitution on
|
||||
the value of the environment variable
|
||||
.SM
|
||||
.B ENV
|
||||
if the file exists.
|
||||
if the file exists, its name being determined by
|
||||
performing parameter expansion, command substitution,
|
||||
and arithmetic substitution on
|
||||
the value of that environment variable.
|
||||
If the
|
||||
.B \-s
|
||||
option is not present and
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue