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set prompt in sh

 
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# 15  
Old 03-25-2003
Check this out: http://www.unixguide.net/unix/faq/2.4.shtml

Bourne Shell (sh):

If you have a newer version of the Bourne Shell (SVR2 or newer)
you can use a shell function to make your own command, "xcd" say:

xcd() { cd $* ; PS1="`pwd` $ "; }

If you have an older Bourne shell, it's complicated but not
impossible. Here's one way. Add this to your .profile file:

LOGIN_SHELL=$$ export LOGIN_SHELL
CMDFILE=/tmp/cd.$$ export CMDFILE
# 16 is SIGURG, pick a signal that's not likely to be used
PROMPTSIG=16 export PROMPTSIG
trap '. $CMDFILE' $PROMPTSIG

and then put this executable script (without the indentation!),
let's call it "xcd", somewhere in your PATH

: xcd directory - change directory and set prompt
: by signalling the login shell to read a command file
cat >${CMDFILE?"not set"} < cd $1
PS1="\`pwd\`$ "
EOF
kill -${PROMPTSIG?"not set"} ${LOGIN_SHELL?"not set"}

Now change directories with "xcd /some/dir".
 
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LEARN ABOUT HPUX

xhpacknowledge

XHPAcknowledge(3X)														XHPAcknowledge(3X)

NAME

       XHPAcknowledge - Send an Acknowledge to an extended input device.

SYNOPSIS

       #include <X11/XHPlib.h>

       int XHPAcknowledge (display, deviceid, acknowledge)
	    Display	   *display;
	    XID       deviceid;
	    int       acknowledge;

ARGUMENTS

       display	   Specifies the connection to the X server.

       deviceid    Specifies the ID of the desired device.

       acknowledge Specifies the acknowledge to be sent.  Valid values are: GENERAL_ACKNOWLEDGE, ACKNOWLEDGE_1, ACKNOWLEDGE_2, ACKNOWLEDGE_3,
		   ACKNOWLEDGE_4, ACKNOWLEDGE_5, ACKNOWLEDGE_6, ACKNOWLEDGE_7.

DESCRIPTION

       This request is part of an HP-proprietary extension to X.  Its functionality has been superseded by the standard XChangeFeedbackControl
       request.  You should use XChangeFeedbackControl instead of XHPAcknowledge if possible.

       This request sends an acknowledge to an input device.  This allows a previously received prompt to be turned off.

       A prompt is an audio or visual indication that the program controlling the input device is ready for input.  The LED on an HP46086A
       buttonbox is an example of a prompt.  A program may indicate its status by turning on a prompt on the appropriate input device.

       Not all input devices support prompts and acknowledges.	Any device that does support a particular prompt will also support the
       corresponding acknowledge.

       To determine whether an input device supports a particular prompt and acknowledge, the io_byte field of the XHPDeviceList structure should
       be examined.  The format of this structure is described in the documentation for the XHPListInputDevices request.

RETURN VALUE

       none

DIAGNOSTICS

       BadDevice   An invalid device ID was specified.

       BadValue    An invalid acknowledge was specified.

FILES

       /usr/include/X11/XHPlib.h

ORIGIN

       Hewlett-Packard Company

SEE ALSO

       XHPListInputDevices(3x)
       XHPPrompt(3x)

X Version 11							     Release 5							XHPAcknowledge(3X)