Frequent Question: How Do I Remove a Character from a Unix File?

How do I remove a junk character in Unix?

Different ways to remove special characters from UNIX files.

1. Using vi editor:-
2. Using command prompt/Shell script:-
3. a) Using col command: $ cat filename | col -b > newfilename #col removes the reverse line feeds from input file.
4. b) Using sed command: …
5. c) Using dos2unix comand: …
6. d) To remove the ^M characters in all files of a directory:

21 дек. 2013 г.

How do I remove the first character from a Unix file?

You can also use the 0,addr2 address-range to limit replacements to the first substitution, e.g. That will remove the 1st character of the file and the sed expression will be at the end of its range — effectively replacing only the 1st occurrence. To edit the file in place, use the -i option, e.g.