mchetan@hawk.ulowell.edu (Munisuvratha Chetan) (10/08/90)
I have a shell program that sets certain shell variables according to certain working environment. If I execute this program after logging in, the login shell does not have those variables (of course, because the shell program is executed in a new shell). How do I tell the current shell to execute the shell program in the current shell, and NOT in a new shell ? Or, isn't there any such mechanism ? Thanx a bunch.
ronald@atcmp.nl (Ronald Pikkert) (10/10/90)
From article <1339@ul-cs.ulowell.edu>, by mchetan@hawk.ulowell.edu (Munisuvratha Chetan): > How do I tell the current shell to execute the shell program in > the current shell, and NOT in a new shell ? The command: . ./foo will execute the script named foo in the current directory without starting a subshell to do the job. - Ronald Pikkert E-mail: ronald@atcmp.nl @ AT Computing b.v. Tel: 080 - 566880 Toernooiveld 6525 ED Nijmegen
hunt@dg-rtp.rtp.dg.com (Greg Hunt) (10/10/90)
In article <1339@ul-cs.ulowell.edu>, mchetan@hawk.ulowell.edu (Munisuvratha Chetan) writes: > I have a shell program that sets certain shell variables > according to certain working environment. If I execute this > program after logging in, the login shell does not have those > variables (of course, because the shell program is executed in > a new shell). > How do I tell the current shell to execute the shell program in > the current shell, and NOT in a new shell ? > Or, isn't there any such mechanism ? > > Thanx a bunch. > If the script is a bourne shell script (designed for /bin/sh), then you do the following: . name_of_script This is a period followed by a space followed by the name of your script. If the script is a C shell script (designed for /bin/csh), then you do the following: source name_of_script I don't know how other shells (like ksh) handle this. Enjoy! -- Greg Hunt Internet: hunt@dg-rtp.rtp.dg.com DG/UX Kernel Development UUCP: {world}!mcnc!rti!dg-rtp!hunt Data General Corporation Research Triangle Park, NC These opinions are mine, not DG's.
gwyn@smoke.BRL.MIL (Doug Gwyn) (10/11/90)
In article <1339@ul-cs.ulowell.edu> mchetan@hawk.ulowell.edu (Munisuvratha Chetan) writes: >How do I tell the current shell to execute the shell program in >the current shell, and NOT in a new shell ? Use the "." builtin command: . foo_bar # executes foo_bar script in the current shell
bob@wyse.wyse.com (Bob McGowen x4312 dept208) (10/11/90)
In article <1339@ul-cs.ulowell.edu> mchetan@hawk.ulowell.edu (Munisuvratha Chetan) writes: >I have a shell program that sets certain shell variables >according to certain working environment. If I execute this .... >How do I tell the current shell to execute the shell program in >the current shell, and NOT in a new shell ? try using the dot command in sh or source in csh: For sh: . file # the current shell reads file and runs it, # file need not be executable For csh: source file # current shell read and runs file, # also does not need execut permissions In sh (maybe also csh, I do not know), if you are running as root and the root path does not inlcude the current directory (which is good security practice), you will need to use the dot command as follows: . ./file # provides a relative path pointed at the file Bob McGowan (standard disclaimer, these are my own ...) Product Support, Wyse Technology, San Jose, CA ..!uunet!wyse!bob bob@wyse.com
cpcahil@virtech.uucp (Conor P. Cahill) (10/11/90)
In article <1339@ul-cs.ulowell.edu> mchetan@hawk.ulowell.edu (Munisuvratha Chetan) writes: >How do I tell the current shell to execute the shell program in >the current shell, and NOT in a new shell ? What you need to do is "source" the sub-shell. The way you do this varies depending upon which shell you are talking about. Both the Korn (ksh) and Bourne (sh) shells use ".". So if you wanted to re-run your .profile and have its settings apply to your current shell you would enter: . ./.profile -- Conor P. Cahill (703)430-9247 Virtual Technologies, Inc., uunet!virtech!cpcahil 46030 Manekin Plaza, Suite 160 Sterling, VA 22170
sweh@tharr.UUCP (Stephen Harris) (10/13/90)
In article <669@atcmpe.atcmp.nl> ronald@atcmp.nl (Ronald Pikkert) writes:
RP>From article <1339@ul-cs.ulowell.edu>, by mchetan@hawk.ulowell.edu (Munisuvratha Chetan):
RP>
RP>> How do I tell the current shell to execute the shell program in
RP>> the current shell, and NOT in a new shell ?
RP>
RP>The command: . ./foo will execute the script named foo in the current
RP> directory without starting a subshell to do the job.
RP>
And in C-shell use the command
source ./foo
to do the same thing.
RP>
RP>-
--
Stephen Harris
Disclaimer: me have an opinion? | Email: ..!ukc!axion!tharr!sweh
What an idea! | sweh%tharr.uucp@uk.co.bt.axion
Wanted: humour transplant | tharr!sweh@uk.ac.ukc
<-- tharr *free* public access to Usenet in the UK 0234 261804 -->emanuele@overlf.UUCP (Mark A. Emanuele) (10/13/90)
In article <1339@ul-cs.ulowell.edu>, mchetan@hawk.ulowell.edu (Munisuvratha Chetan) writes: > How do I tell the current shell to execute the shell program in > the current shell, and NOT in a new shell ? Correct me if I am wrong, but I think this will work. . shell-program-name-that-is-executible This should execute that shell script in the current shell much like the way your .profile does. -- Mark A. Emanuele V.P. Engineering Overleaf, Inc. 500 Route 10 Ledgewood, NJ 07852-9639 attmail!overlf!emanuele (201) 927-3785 Voice (201) 927-5781 fax emanuele@overlf.UUCP
george@hls0.hls.oz (George Turczynski) (10/15/90)
In article <1339@ul-cs.ulowell.edu>, mchetan@hawk.ulowell.edu (Munisuvratha Chetan) writes: > I have a shell program that sets certain shell variables > according to certain working environment. If I execute this > program after logging in, the login shell does not have those > variables (of course, because the shell program is executed in > a new shell). > How do I tell the current shell to execute the shell program in > the current shell, and NOT in a new shell ? > Or, isn't there any such mechanism ? > > Thanx a bunch. What SHELL are you using ??? Oh well, use "source <filename>" in the C-SHELL (/bin/csh) and ". <filename>" in the BOURNE-SHELL (/bin/sh). Also, RTFM. And by the way, is this on the FAQ list ? If not perhaps it should be. -- George P. J. Turczynski, Computer Systems Engineer. Highland Logic Pty Ltd. ACSnet: george@highland.oz |^^^^^^^^^^^^^^^^^^^^^^^^| Suite 1, 348-354 Argyle St Phone: +61 48 683490 | Witty remarks are as | Moss Vale, NSW. 2577 Fax: +61 48 683474 | hard to come by as is | Australia. --------------------------- space to put them ! ---------------------------