commad to remove control M character

[Shivkumar]

Sirs,

I have a file which has probably windows format text file. I want to remove ^M (control M) from the begining of the lines in the files.

In the second files i ^M are present in the begining of each lines and somewhere at the end of the lines.

Please suggest hpux command to remove the extra character ^M from both the files.

Thanks,
Shiv

[Mel Burslan · Accepted solution]

Shiv,

Usually /usr/bin/dos2ux command does this for you if you have them and it comes with hpux v11.11.

if youare ftp ing these files, you can choose to transfer them in ascii form instead of binary, which will eliminate those pesky ^M characters.

Last but not the least, you can remove them using sed, albeit, I have not tested this solution but I do not see any reason for it not to work. Here it is:

cat SourceFile|sed -e "1,\$s/^M//" > OutputFile

to create the ^M on the line above you first hit ctrl-v then ctrl-m instead of typing it, to give it the actual meaning of the character.

Hope one of these solutions work for you...

[Ralph Grothe]

There are numerous solutions.

You could also use the translate command

tr -d \\015 < file > file_cr_stripped

You can also do the substitution while you are editing the file in vi

vi file

then type

Esc:%s/Ctrl+vCR//CR:wqCR

Esc: gets you in command mode
% refers to the whole file
s/// substitutes patternA by patternB
Ctrl+v escapes special keys like Carriage Return (CR) which appears as ^M
Since patternB is empty the CRs get stripped
:wq exits and saves from buffer to file

[James R. Ferguson]

Hi SHiv:

If you are running on HP-UX you have 'dos2ux' and 'ux2dos'.

As noted in their man pages, "dos2ux and ux2dos read each specified file in sequence and write it to standard output, converting to HP-UX format or to DOS format, respectively."

If you are *not* on a HP server, you can make strip the carriage returns (^M) with this:

# perl -ni.bak -e 's/\r\n/\n/s;s/\032//s;print' myfile

The above make a backup copy of "myfile" as "myfile.bak" and performs the conversion.

Regards!

...JRF...

[Devender Khatana]

HI,

I normally use dos2unix command to do this.

HTH,
Devender

[Yogeeraj_1]

hi,

this question has been asked so many times here. :)

please see:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=972302

kind regards
yogeeraj

[Arunvijai_4]

Hi Shiv,

You can use the following methods to remove ^M from a file

In vi, :s/^M//g
Or use sed to do it:
sed 's(ctrl v ctrl m)g//g' old.file > new.file

-Arun

[Sandman!]

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=972302

cheers!

[Ranjith_5]

Hi Shiva,

There are many methods.

1.Using dos2ux command

#dos2ux file1>newfile

2.Using VI

Edit the file using vi, then
:%s/\^M//g

3.Using tr command.

#tr -d \\015 < filename > newfile

You may also use sed for the same purpose.

Regards,
Syam

[Arunvijai_4]

Hi Shiv, You can use strings utility that comes with HP-UX by default.

# strings > good_file

-Arun

[Cem Tugrul]

Hi Shiv,
cat filename | sed -e "s/[ctrl-v ctrl-m]//" > newfilename

by [ctrl-v ctrl-m] I mean you should hit ctrl-v then ctrl-m between the first and second "/" (slash).

i have tested and it is working...

Good Luck,

[Raj D.]

Hi Shiv ,

Simply it can be donw with /usr/bin/dos2ux command,

Ex: If the file name is file1

# cd /usr/bin
# dos2ux file1 > file2

file2 will be result file, which will not have the control characters.

Enjoy,
hth,
Raj