Remove extension from the file name

[Database Administrator]

Given the list of file

file.cpp
file2.cpp
etc

I want to remove .cpp

Can someone mock up a quick sed commend or some equavalent.

Thanks

[Database Administrator]

for file in `ls *.cpp`
do
newname=`echo $file|sed 's/\.cpp$//g'`
mv $file $newname
done

#might do it

[Database Administrator]

Thus spake puzzlecracker (ironsel2000@gmail.com):
> Given the list of file
>
> file.cpp
> file2.cpp
> etc
>
> I want to remove .cpp
>
> Can someone mock up a quick sed commend or some equavalent.

Zsh:
# autoload zmv
# zmv '(*).cpp' '$1'
--
Linux is for people who hate Windows | Christian 'strcat' Schneider
FreeBSD is for people who hate Linux | http://www.strcat.de/
FreeBSD is for people who hate OpenBSD | http://www.strcat.de/blog/
OpenBSD is for people who hate everything | http://strcat.de/chris.gpg

[Database Administrator]

On Wednesday 12 November 2008 21:24, andy wrote:

> for file in `ls *.cpp`

for file in *.cpp

> do
> newname=`echo $file|sed 's/\.cpp$//g'`

newname=`echo "$file"|sed 's/\.cpp$//'`

# or, without external commands
# newname=${file%.cpp}

> mv $file $newname

mv -- "file" "$newname"

> done
>
> #might do it

[Database Administrator]

On 2008-11-12, puzzlecracker wrote:
> Given the list of file
>
> file.cpp
> file2.cpp
> etc
>
> I want to remove .cpp
>
> Can someone mock up a quick sed commend or some equavalent.

Use shell parameter expansion:

file=file.cpp
basename=${file%.cpp}

--
Chris F.A. Johnson, author
Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
===== My code in this post, if any, assumes the POSIX locale
===== and is released under the GNU General Public Licence

[Database Administrator]

Le Wed, 12 Nov 2008 12:19:22 -0800, puzzlecracker a écrit*:

> Given the list of file
>
> file.cpp
> file2.cpp
> etc
>
> I want to remove .cpp
>
> Can someone mock up a quick sed commend or some equavalent.

from man basename:
"...If specified, also remove a trailing SUFFIX."

basename *.cpp .cpp


lg

[Database Administrator]

On Nov 12, 4:52*pm, "Chris F.A. Johnson" wrote:
> On 2008-11-12, puzzlecracker wrote:
> > Given the list of file
>
> > file.cpp
> > file2.cpp
> > etc
>
> > I want to remove .cpp
>
> > Can someone mock up a quick sed commend or some equavalent.
>
> * * Use shell parameter expansion:
>
> file=file.cpp
> basename=${file%.cpp}
I like this solution. Would you explain how bash removes the
extension, for it's not quite intuative from the definition above?

Also, I'd like to extend this to any extension type, given everything
that follows the dot is denoted as extension.

THX
Thank you

[Database Administrator]

Le Wed, 12 Nov 2008 22:34:30 +0000, Laurianne Gardeux a écrit*:

> Le Wed, 12 Nov 2008 12:19:22 -0800, puzzlecracker a écrit*:
>
>> Given the list of file
>>
>> file.cpp
>> file2.cpp
>> etc
>>
>> I want to remove .cpp
>>
>> Can someone mock up a quick sed commend or some equavalent.
>
> from man basename:
> "...If specified, also remove a trailing SUFFIX."
>
> basename *.cpp .cpp

Sorry, this is not correct!

should bee:

for i in *; do
basename "$i" .cpp
done

consider the Answer of Chris ...


lg

[Database Administrator]

puzzlecracker wrote:
> On Nov 12, 4:52 pm, "Chris F.A. Johnson" wrote:
>
>>On 2008-11-12, puzzlecracker wrote:
>>
>>>Given the list of file
>>
>>>file.cpp
>>>file2.cpp
>>>etc
>>
>>>I want to remove .cpp
>>
>>>Can someone mock up a quick sed commend or some equavalent.
>>
>> Use shell parameter expansion:
>>
>>file=file.cpp
>>basename=${file%.cpp}
>
> I like this solution. Would you explain how bash removes the
> extension, for it's not quite intuative from the definition above?

See chapter "Parameter Expansion" in man bash.

>
> Also, I'd like to extend this to any extension type, given everything
> that follows the dot is denoted as extension.

$ file=file.cpp
$ ext=cpp
$ basename=${file%.${ext}}
$ echo ${basename}
file


Janis

>
> THX
> Thank you

[Database Administrator]

Le Wed, 12 Nov 2008 14:43:41 -0800, puzzlecracker a écrit*:

> On Nov 12, 4:52*pm, "Chris F.A. Johnson" wrote:
>> On 2008-11-12, puzzlecracker wrote:
>> > Given the list of file
>>
>> > file.cpp
>> > file2.cpp
>> > etc
>>
>> > I want to remove .cpp
>>
>> > Can someone mock up a quick sed commend or some equavalent.
>>
>> * * Use shell parameter expansion:
>>
>> file=file.cpp
>> basename=${file%.cpp}
> I like this solution. Would you explain how bash removes the extension,
> for it's not quite intuative from the definition above?
>
> Also, I'd like to extend this to any extension type, given everything
> that follows the dot is denoted as extension.

for i in *; do echo "${i%.*}"; done

lg