NetNews Usenet Archive 1993 #3/NN_1993_3.iso/spool/comp/sys/next/software/3627

Text File | 1993-01-25 | 5.2 KB | 192 lines

Newsgroups: comp.sys.next.software
Path: sparky!uunet!stanford.edu!nntp.Stanford.EDU!news
From: [e-mail] (Magnus Nordborg)
Subject: Submission: Shell scripts to launch NeXTstep applications from command line
Message-ID: <[e-mail]>
Keywords: csh, open, Mail
Sender: [e-mail] (Mr News)
Organization: DSO, Stanford University
Date: Mon, 25 Jan 93 22:39:02 GMT
Lines: 180

    Below are two csh scripts that launch NeXTstep applications from the
command line.  The first, "nxlaunch", will let you type "nxlaunch Mail" instead
of "/NextApps/Mail.app/Mail &" or "nxlaunch -o Mail" instead of "open
/NextApps/Mail.app".  Thus you save typing, and don't have remember the path of
every application.

    There is one very useful difference between launching via "open (-o)"
or directly in background -- using "open" is just like clicking on the app,
running it the other way is literally launching it from the command line.  For
example, if you have a terminal open, and use "su" to become another user, then
type "nxlaunch Mail", that user's mail will be read, whereas the "nxlaunch -o
Mail" would not.

    This is also useful since "nxlaunch" also takes a "-NXHost" argument:
If I sit at localhost (PublicWindowServer) and rlogin to remotehost, then type
"nxlaunch -NXHost localhost Mail", my mail on remotehost will be read, whereas
"nxlaunch -o -NXHost localhost Mail" would read mail on localhost.

    To make this last feature more useful, there is a second script,
"nxrsh", that is equivalent to "xrsh". Thus you can type (assuming a .rhosts
file, and the presence of "nxlaunch" on remote host) "nxrsh remotehost Mail".

    These script are public domain, and without any guarantees. Please send
me improvement and bug reports.

###################### nxlaunch: cut below this line ######################
#! /bin/csh -f
#
#    Finds and launches a NeXTapp from a shell, thus saving you the
#        trouble of remembering and typing the full path.
#
#    by Magnus Nordborg <[e-mail]>
#        Wed Jan 20 13:31:38 PST 1993
#

set flags
set useopen

switch ( $#argv )
case 1:
  if ( $argv[1] =~ -h* ) then
    goto usage
  else
    set app = $argv[1]
  endif
  breaksw
case 2:
  if ( "$argv[1]" == "-o" ) then
    set useopen = 1
    set app = $argv[2]
  else
    goto usage
  endif
  breaksw
case 3:
  if ( $argv[1] == "-NXHost" ) then
    set app = $argv[3]
    set flags = "-NXHost $argv[2]"
  else
    goto usage
  endif
  breaksw
case 4:
  set useopen = 1
  set app = $argv[4]
  if ( "$argv[1]" == "-o" && $argv[2] == "-NXHost" ) then
    set flags = "-NXHost $argv[3]"
  else if ( $argv[1] == "-NXHost" && "$argv[3]" == "-o" ) then
    set flags = "-NXHost $argv[2]"
  else
    goto usage
  endif
  breaksw
default:
  goto usage
  breaksw
endsw

# check to see where Apps reside
/usr/bin/dread Workspace ApplicationPaths >& /dev/null    # defined?
if ( $status ) then
  set vmpath = (~/Apps /LocalApps /NextApps /NextDeveloper/Apps /NextAdmin
/NextDeveloper/Demos)
else
  set tmp = `/usr/bin/dread Workspace ApplicationPaths`
  set vmpath = (`echo $tmp[3] | /bin/awk -F: '{for(i=1;i<=NF;i++) print $i}'`)
endif

# find the App
foreach d ( $vmpath )
  if ( -ed $d ) then
    if ( -ed ${d}/${app}.app ) then
      if ( $useopen ) then
        /usr/bin/open $flags ${d}/${app}.app
      else
        ${d}/${app}.app/${app} $flags &
      endif
      exit 0
    else if ( -ex ${d}/$app ) then        # not in app wrapper
      if ( $useopen ) then
        /usr/bin/open $flags ${d}/$app
      else
        ${d}/$app $flags
      endif
      exit 0
    endif
  endif
end


which echo2 >& /dev/null            # public domain: echo to stderr
if ( $status ) then                #  -- use it if it exists
  echo "$0 : $app not found"
  exit 1
else
  echo2 "$0 : $app not found"
  exit 1
endif

usage:
which echo2 >& /dev/null            # public domain: echo to stderr
if ( $status ) then                #  -- use it if it exists
  echo "Usage: $0 [-o][-NXHost hostname] NeXTapp"
  echo '-o:   use "open" to launch'
  exit 1
else
  echo2 "Usage: $0 [-o][-NXHost hostname] NeXTapp"
  echo2 '-o:   use "open" to launch'
  exit 1
endif

###################### nxrsh: cut below this line ######################
#! /bin/csh -f
#
#    nxrsh -- an equivalent of xrsh
#
#    Usage: nxrsh hostname NeXTapp
#
#    by Magnus Nordborg <[e-mail]>
#        Wed Jan 20 13:31:38 PST 1993
#
#    Bugs: I have not been able to come up with a clever way of
#          finding the correct HOSTNAME -- it has to be set in ".login"
#          My other shell script, "nxlaunch", is needed to find the app.
#
#             There should be a way for this script to make the
#             machine PublicWindowServer temporarily -- let me know
#             if you find one...
#

set openflag

if( $#argv ) then
  if( "$argv[1]" == "-o" ) then
    set openflag = "-o"
    shift
  endif
endif

if( $#argv != 2 ) then
  echo "Usage: nxrsh [-o] hostname NeXTapp"
  echo '-o:   use "open" to launch'
  exit 1
endif

if( ! $?HOSTNAME ) then
  echo "Environment variable HOSTNAME not set"
  exit 1
endif

# launch it on remote host using "nxlaunch"
/usr/ucb/rsh $argv[1] "nxlaunch $openflag -NXHost $HOSTNAME $argv[2]" &

--


        Magnus Nordborg
        Department of Biological Sciences
        Stanford University
        [e-mail] (NeXT mail preferred)