HP-UX Reference (11i v2 03/08) - 1M System Administration Commands N-Z (vol 4)

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strchg(1M) strchg(1M)

DIAGNOSTICS

strchg returns zero on success. It prints an error message and returns non-zero status for various error

conditions, including usage error, bad module name, too many modules to push, failure of an

ioctl on

the stream, or failure to open ﬁle from the

-f option.

strconf returns zero on success (for the -m

or -t option, "success" means the named or topmost module

is present). It returns a non-zero status if invoked with the

-m or -t option and the module is not

present. It prints an error message and returns non-zero status for various error conditions, including

usage error or failure of an

ioctl

on the stream.

EXAMPLES

The following command pushes the module

ldterm

on the stream associated with the user’s standard

input:

strchg -h ldterm

The following command pops the topmost module from the stream associated with

/dev/term/24. The

user must be the owner of this device or be superuser.

strchg -p < /dev/term/24

If the ﬁle, fileconf, contains the following:

compat

ldterm

ptem

then the command

strchg -f fileconf

will conﬁgure the user’s standard input stream so that the module

ptem is pushed over the driver, fol-

lowed by

ldterm and compat closest to the stream head.

The

strconf command with no arguments lists the modules and topmost driver on the stream. For a

stream that only has the module ldterm pushed above the ports driver, it would produce the following

output:

ldterm

ports

The following command asks if ldterm is on the stream:

strconf -m ldterm

and produces the following output while returning an exit status of 0:

yes

FILES

/usr/lib/nls/msg/C/strchg.cat NLS catalogs

/usr/lib/nls/msg/C/strconf.cat NLS catalogs