What is bad in this sentence?

Coimbra · 07-11-2007, 07:40 AM

cat pruebased | sed ´s/$/this to the final/g´ > pruebased

the error is:

..... ./sed.sh: cannot execute binary file

thanks to all

acid_kewpie · 07-11-2007, 07:46 AM

wrong kind of quote marks isn't it? not sure what they even are. try...

cat pruebased | sed -e 's/$/this to the final/g' > pruebased

and writing to your own file is a VERY bad thing... use a temporary file and then replace the file afterwards if that's the result you really want.

Coimbra · 07-11-2007, 08:09 AM

I have the same error with:

cat pruebased | sed -e 's/$/this to the final/g' > prueba

What is binary file in linux?

pixellany · 07-11-2007, 08:24 AM

Quote:

Originally Posted by Coimbra

I have the same error with:

cat pruebased | sed -e 's/$/this to the final/g' > prueba

What is binary file in linux?

A binary file is usually an executable, but could also be an image--eg a jpeg. More generally, any file that cannot be decoded to text using ascii, utf-8, etc.

I assume your error will be the same if you just do "cat pruebased"

You added "-e" in you second example---why? (It means gets instructions from a script)

Note also that you can use the "-i_ switch to have sed edit the file "in place.

b0uncer · 07-11-2007, 08:34 AM

Quote:

I assume your error will be the same if you just do "cat pruebased"

Not really, cat (concatenate) can deal with any file, not just text files. That's why you can use

Code:

cat /usr/bin/somebinary > /usr/bin/someotherbinary

to copy stuff.

pixellany · 07-11-2007, 08:58 AM

Touche!!
I was being sloppy (because I often use "cat" interchangeably with "more")

acid_kewpie · 07-11-2007, 09:26 AM

I always thought -e meant extended... it doesn't mean run a script file as such, just run the following as if it were a script i think, so the language of the regex is enhanced or summat... never actually written a full grep script before...

pwc101 · 07-11-2007, 10:01 AM

Quote:

Originally Posted by Coimbra

cat pruebased | sed ´s/$/this to the final/g´ > pruebased

the error is:

..... ./sed.sh: cannot execute binary file

thanks to all

Just to be pedantic, we have a UUOC here:

Code:

cat pruebased | sed ´s/$/this to the final/g´ > pruebased

could be:

Code:

sed 's/$/this to the final/g' pruebased > pruebased.out

Unless there's some rule about binary files as input and sed...?

theYinYeti · 07-11-2007, 10:22 AM

Your error seems to indicate that you use back-quotes (`) instead of single quotes (') or double quotes ("). The kind you used in your first post (’) is yet another (invalid) kind.

Apart from that, just a small note: the 'g' in your expression is useless as the /$/ pattern can appear only once per line (this means "end of line").

As for the extended regexps, this is done with the -r option in sed. -e is the same for grep.

Yves.

jkillah1 · 07-11-2007, 03:15 PM

nerds...