Special Characters [^M] appearing at the end of line in file if seen on unix but not when seen in eclipse

As described in questions, if I see a file in unix then I see special characters in it like ^M at the end of every line but if I see same file in eclipse than I do not see that special characters.

How can I remo开发者_运维问答ve those characters in the file, if am using eclipse for editing the file, do we have to make any specific changes in the eclipse preferences for the same ?

Any guidance would be highly appreciated.

Update:

Yes indeed it was carriage issue and following command helped me to get it sort out:

dos2unix file1.sh>file2.sh and file2.sh will be the file and it will not have any carriage values.

Possibly we can get warning like

could not open /dev/kbd to get keyboard type US keyboard assumed could not get keyboard type US keyboard assumed but following command will suppress the warnings:

dos2unix -437 file1.txt>file2.txt

You have saved your text file as a DOS/Windows text file. Some Unix text editors do not interpret correctly DOS/Windows newline convention by default. To convert from Windows to Unix, you can use dos2unix, a command-line utility that does exactly that. If you do not have that available in your system, you can try with tr, which is more standard, using the following invocation:

tr -d '\r' < input.file > output.file

They are probably Windows carriage return characters. In Windows, lines are terminated with a carriage-return character followed by an end-of-line character. On Unix, only end-of-line characters are normally used, therefore many programs display the carriage return as a ^M.

You can get rid of them by running dos2unix on the files. You should also change your Eclipse preferences to save files with Unix end of lines.

Perhape this has suppressed UNIX warning message and worked creating the output file:

$ dos2unix -437 file.txt > file2.txt

You can remove those using dos2unix utility on a linux or unix machine. The syntax is like this dos2unix filename.

This are windows new line chars. You can follow steps shown in this post to have correct this issue.