last parameter problem 1

[ChesterPinkledink]

I am trying to call a filename in a script I wrote. The script has multiple cases and the number changes too frequently to put a constant number in. Is there a way I can call the last parameter and put it as the infile for a wc or a tr for example because it will always be the last parameter. Thanks

 

[tdatgod]

Hi,
it depends on your scripting language.

CSH

set filename = $argv[$#argv]

---

$#argv is the number of parameters -- x
$argv[x] will be the last paramter.

------------------------

SH/KSH


a="\$$#"
filename=`eval echo $a`

---------

$# is the number of parameters -- x
a="\$$#" will set a to $x
eval echo $a will then become
eval echo $x

which will then return parameter x.

 

[Guest_imported]

That's it, i knew it was something like that, but you made my whole life much easier, helped me with a load of problems.