Parameter passing to dot shell script

UNIX SCO
1

OS SCO Open Server 6.0 MP4

I am trying to change the value of a enviornment variable thru a script and want to pass a parameter on the commande line, If I hard code the value inside the script the script changes the enviornment variable

. mytest

where my test is
MYVAR=$1
export MYVAR

I am un able to pass parameters as follows

. mytest myparameter

Please guide

Thanks

2

. ./mytest myparameter

3

$1 is passed at the command line

. mytest parameter

The parameter will become $1 as my understanding

---------- Post updated at 04:38 PM ---------- Previous update was at 04:36 PM ----------

My need is to change the enviornment variable and for that I am using the dot script method so that the current enviornment is changed and available after the script exits

4

run it this way :

. ./mytest parameter

[ctsgnb@shell ~]$ env | grep MYVAR
[ctsgnb@shell ~]$ cat mytest
MYVAR=$1
export MYVAR
[ctsgnb@shell ~]$ . ./mytest myparam
[ctsgnb@shell ~]$ env | grep MYVAR
MYVAR=myparam
[ctsgnb@shell ~]$

or can alternatly enter the full path of mytest :

. /full/path/mytest myparameter
5

without the dot command the vaules of environemnt are not changed. the script creates a sub shell and that is not available back to the parent shell.

I have tried the way you are mentioning.

---------- Post updated at 05:10 PM ---------- Previous update was at 04:44 PM ----------

Does not Work

. mytest hp4345 Command line

here is the code for mytest

#!/bin/sh
DFPRINTER=$1;export DFPRINTER;

after executing the above the enviornment variable is still same with old value.

this works
. mytest

code#!/bin/sh
DFPRINTER=hp4341;export DFPRINTER;

after executing the above the environment variable DFPRINTER value changes to hp4345

and I want to parametrize the hp4345 part so that I can pass on any desired value

---------- Post updated at 05:27 PM ---------- Previous update was at 05:10 PM ----------

. ./mytest parameter

the parameter is no being passed in to the script

6

If mytest contains

#!/bin/sh
DFPRINTER=$1;export DFPRINTER;

where /bin/sh is either the Bourne, Bash or Korn shell and

. ./mytest hp4345

does not set the environmental variable DFPRINTER to hp4345, then something else is going on.

Please confirm what shell you are using.

7

Put it in your .profile, or in the script that uses it.