LinuxSA Mailing list archives

  From: Mark Smith <marks@senet.com.au>
  To  : Darryl Ross <darryl@bachblue.com.au>
  Date: Sat, 03 Apr 1999 12:29:51 +0930

Re: Executable files

Using the file permissions is a good indication, but if you want to be
absolutely sure, use the file(1)

eg :

[mark@portia]$ file zip
zip: ELF 32-bit LSB executable, Intel 80386, version 1, dynamically
linked, stripped
[mark@portia]$ 

file(1) is also really useful to identify of files of various different
types. It is interesting to run it against other types of files. Eg. I
sometimes run it against Cisco IOS files, and it tells me the router has
for example a Motorola 68K CPU in it, as the IOS image is a M68K
executable.

HTH,
mark.
 

Darryl Ross wrote:
> 
> Have a look at the file permissions. If there is an X in the third column of
> each of the permissions it means its executable. eg:
> 
> -rwxr-xr-x
> 
> means it is readable, writable, and executable for the owner of the file,
> and readable and executable by everyone else.
> 
> Also, if you do an "ls --color" then if the file is green (assuming you
> haven't changed the colour settings) then it is executable by the current
> user.
> 
> Hope that makes sense
> Cheers
> Dazz
> 
> --
> 
> Yesterday's the past, tomorrow's the future, but today's a gift, that's why
> its called the present.
> 
> ----- Original Message -----
> From: Robyn Manning <robynman@dove.net.au>
> To: <linuxsa@linuxsa.org.au>
> Sent: Saturday, 3 April 1999 3:18
> Subject: Executable files
> 
> >How do you know if a file is an executable or not? In Dos you have an
> >ending of exe or com or bat. Does Linux have anything like this?
> >
> >What are the steps involved to set up a pnp sound card in Linux.
> >
> >Thanks
> >
> >Robyn
> >
> >
> >--
> >Check out the LinuxSA web pages at http://www.linuxsa.org.au/
> >To unsubscribe from the LinuxSA list:
> >  mail linuxsa-request@linuxsa.org.au with "unsubscribe" as the subject
> 
> --
> Check out the LinuxSA web pages at http://www.linuxsa.org.au/
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--
| Mark Smith | email: mailto:marks@senet.com.au
| "IP Over Everything" - Vint Cerf.

-- 
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