Change file extension name in Unix script

Question

If I have something like this:

file=abcdefg.url
echo $file

is there a way I can make it so that when I export using > I can export it to an html file by substituting the .url with a null character and appending .html?

for example:

x=(sed -n 's/URL=//p' $f) 
$out=$file.html
//replace .url with a null here
$x>$out

Thanks in advance!

possible duplicate of [Bash script: remove extension from file name](http://stackoverflow.com/questions/14703318/bash-script-remove-extension-from-file-name) — tripleee, Jun 08 '14 at 17:00

score -1 · Answer 1 · edited May 30 '14 at 17:58

-1

Something like this...

out=`echo file.url | sed 's/\..*//'`.html
$x>$out

or (as I am learning) a better way is:

out=$(echo file.url | see 's\..*//').html

edited May 30 '14 at 17:58

Jotne

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answered May 30 '14 at 17:43

John C

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You should not use old back ticks, change to parentheses. `out=$(echo file.url | sed 's/\..*//').html` – Jotne May 30 '14 at 17:46
@JohnC I didn't downvote, but read somewhere that this is the anal way to discourage duplicate content. – Cees Timmerman Oct 07 '14 at 13:54

score -1 · Answer 2 · answered Jun 08 '14 at 16:54

You want to rename the file whose name is in $file from something.url to something.html, right?

If so, and assuming your shell is bash, you may want to use bash suffix removal in this way:

x=(sed -n 's/URL=//p' $f) 
$out=${file%\.url}.html
$x>$out

It should remove the .url suffix from the string contained by $file.

man bash for more details about it.

Change file extension name in Unix script

2 Answers2