newline problem between DOS and Unix format

cjs_pro · 03-10-2005, 08:23 PM

Hi all,

I have a bash script file which use SED to replace the version number of a VisualC++ resource file. The SED command looks like:
sed -e 's/FILEVERSION *[0-9]* *, *[0-9]* *, *[0-9]* *, *[0-9]*[ ]*/FILEVERSION $2,$3,$4,$5/g'
After the replacement, I opened the resource file with notepad on my XP computer. I found that all lines are wrapped into a line. However, I opened the same resource file with notepad on my another XP computer, and each line is displayed properly.
Q1. What setting differences on XPs would cause such notepad display difference?

I then added another SED command in the base script
sed -e 's/$/\r/' < "$file1" >| "$file2"
to insert a \r to each line of the replaced resource file.
When I opened the resource file2, I found all lines ending up with a "r" character.
Q2. What is the way to solve the newline problem between dos and unix format properly?

Thank you

ilikejam · 03-10-2005, 09:27 PM

Hi.

Q1: No idea.

Q2: There's a pair of utilities to do this: unix2dos and dos2unix. They're probably already installed on your Linux box.

Dave

cjs_pro · 03-10-2005, 09:56 PM

Hi Dave,

Thank you for your reply. I tried to avoid relying on the third party utilities which are not standard tools within my working environment. Certainly ,there should be a simple way to do that by SED or AWK.

Thank you

ilikejam · 03-10-2005, 10:25 PM

unix2dos and dos2unix are standard utilities as far as Linux goes. I'm not too sure about other unices.

If you insist on re-inventing the wheel, though, have a look here:
http://www-106.ibm.com/developerwork...ry/l-sed3.html

Dave

ilikejam · 03-10-2005, 10:29 PM

Just noticed this from the linked page:

Quote:

Please note that the '\r' will be replaced with a CR only when using GNU sed 3.02.80 or later.

Dave

bigearsbilly · 03-11-2005, 07:01 AM

tr -d '\015'
works ok.

bigearsbilly · 03-11-2005, 07:05 AM

Quote:

Q1. What setting differences on XPs would cause such notepad display difference?

Windows is after all these years developing some intelligence?

On my old 98 machine at work notepad does as you say but wordpad
reads correctly.

Obviously they have finally updated notepad!!

exvor · 03-11-2005, 11:08 AM

No thats not it at all

the proper answer to Q1 is

In notepad you have the option to enable word wrap or not.

On one computer this is enabled so notepad reconized the new line char in the text document
on the other computer this is not the case. EX the option is turned off.

Open the document in wordpad to avoid this issue.