asked on

Get Extension

Hey.. Suppose I have a variable that stores the below value
"abc/def/ghi.txt"

I wish to get the extension which in this case would be txt. How to do that? Note that the length of the extension varies.
Full working example preferred.

Zyloch

Hi

What language are you using?

Regards,
Zyloch

Zyloch

Just to let you know, most often this is done with some function like split() in the language, but we have to be sure to give a working example.

Regards

da99rmd

Hi ansi_c,
yes it would be easier if we know what language :)

in php you do like this:

$arr = explode(".",$variable);
$extention = arr[count[arr]];

in bash do this:

ext=`echo $variable | sed 's/.*$[^\.]\+$\.$[^\.]\+$$/\2/'`

in c:

bool getextention(char *in, char *out)
{
char *tmp = in;
char *punkt;

for(int i=0; i < sizeof(*in);i++;)
{
if(tmp++ == '.')
punkt = tmp;
}
if(tmp != in)
{
out = tmp;
return TRUE;
}
return FALSE;
}

/Rob

ansi_c

ASKER

i am doing unix shell scripting.

SOLUTION

da99rmd

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ASKER CERTIFIED SOLUTION

de2Zotjes

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da99rmd

de2Zotjes,
smothe solution there.
/Rob

de2Zotjes

smothe ?

I am not native english speaking, what am I missing?

da99rmd

de2Zotjes,
sry I cant spell it should be "smooth" and it means nice, easy in this purpose otherwise it can mean flat, even.
However it was a compliment :)
/Rob