mukyvelous2k5 wrote:
> --- In [email protected], Trevor Pearson <[EMAIL PROTECTED]>
> wrote:
>>
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> mukyvelous2k5 wrote:
>> > Hello, How do i do variable substitution for $$ variable, $? variable
>> > and $0 variable which are internal properties to a program.
>> > Thanks.
>> >
>> >
>> Are you working in the shell or perl ? in perl it is easier and clearer
>> to use the English module
> I am actually working in shell.
You use these variables exactly like any other, except that (as far
as I know) they're read-only since their values are set by the shell.
[EMAIL PROTECTED] ~]$ echo $0
-bash
[EMAIL PROTECTED] ~]$ echo $?
0
[EMAIL PROTECTED] ~]$ echo $$
12079
--
-jdr-
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