I’m sure that this has been done to death on a number of fora, but I never know where to look – so I’ll post it here.
I recently needed to remove spurious ^M characters from files in UNIX, which had been caused by FTPing the file in the wrong mode. There are a number of different ways that this can be done – here’s four of them:
1 – In vi, type :g/(ctrl-V)(ctrl-M)/s///
2 – In vi, type :1,$s/(ctrl-V)(ctrl-M)//
3 – In UNIX, run “tr -d ‘\r’ < oldfilename > newfilename
4 – In UNIX run “tr -d ‘\015\032’ < oldfilename > newfilename
The last one will also remove the DOS EOF character.
There are plenty of different ways to do it, but I tend to use numbers 1 and 3 of these.