ksh(korn shell) - list of environment

[Billa-User]

hello,

with the command "set" i can set serveral options like "set -x, set -a" and so on.
i have a difficult application and i want
to debug some steps. i want to know , which
options are used by "set". with command "env" , i can't see the settings. for example, in ORACLE-SQLPLUS , i can use the command "show all" and i can see the settings.

best regards

tom

[Muthukumar_5]

To get shell environement use like,

# env
# typeset
# set

read man ksh page.

--
Muthu

[Arunvijai_4]

Hi,

Do a # man sh-posix and man ksh, you will find everything there.

_Arun

[V. Nyga]

Hi,

when you set environments in an application you can display them with
'echo $'
Put it in your program to check the current settings of the variable .

HTH
Volkmar

[Antonio Cardoso_1]

Hi tom,

just type "set" alone, it will display all currently set variables.

Addition stuff on shell programming in "Shells: User's Guide: HP 9000 Computers"
http://docs.hp.com/en/B2355-90046/

part III is for ksh.

antonio.

[Peter Nikitka]

Hi,

if you mean the value of options you have set with the set-command: Try
print $-
The variable '-' collect all the 'set'-flags, so:
set -x
set -e
print $-
ivx
(i -> interactive shell)

mfG Peter

[Bill Hassell]

There are two environments for POSIX shells, locally defined variables and exported variables. To see the local variable, just type:

set

To see the exported variable which will be passed onto a script or process, tpye the command:

env

Since set is for the local environment, things like set -x will not apply to a script that you run normally. To trace a script, you can eithee run it with the -x option as in:

sh -x ./myscript

or add set -x to the beginning of your script. Note that in a script, functions are like new scripts so they don't inherit the -x option, so you'll have to add it to your functions.

Note that all the flags for set options are found in the variable $- where if the option has been set, the letter appears and if not set, the letter is missing. So,

echo $-
inum

means set -i -n -u and -m are all set and all others are reset.

[Billa-User]

thank you for the helpful information's