How to remove special chracters @ END OF EACH LINE in a file
file1.txt:
0003073413^M
0003073351^M
0003073379^M
0003282724^M
0003323334^M
0003217159^M
0003102760^M
0002228911^M
I used the below command but it is not working ?
perl -pi -e 's/^M\/g' file1.txt
Even i tried the below command but it is showing o/p in command prompt. I want the changes in the same file
sed 's/\^.[^ ]*//g' file1.txt
Is it really a literal caret and a literal uppercase letter m? Or is it a file that was created on Windows, and the ^M is your editors representation of the carriage return '\r'?
If it's the latter, use either dos2unix (if available) OR open the file in an editor that understands both formats and save it in UNIX format again OR run it trough tr (or similar) to remove the \r at the end.
And it's no wonder your Perl one-liner didn't do anything, it won't even run that way.
run the command
dos2unix filename
this uld automatically convert the extra characters that are viewed
in some unix version the format is
dos2unix filename1 filename2
if both the filename1 and filename2 are same it uld remove the extra characters and write in the same file filename1 else it converts and writes to filename2
The u can redirect the output a other file then copy the file
With tr:
tr -d '\r' < file > newfile
With sed the ^M must be typed as <CTRL-v> <Enter>:
sed 's/^M//' file > newfile
i dnt want to redirect the o/p in a new file. I need to make changes in the same file ?
Use the -i option with sed if your version supports it, otherwise you don't have any choice.