remove CR line terminators
dos, newline, shell, unix
Solution
Simple `\r` terminators for newlines are "old Mac" line terminators, it is strange that an editor in 2012+ even generates files with such line terminators... Anyway, you can use the `mac2unix` command, which is part of the `dos2unix` distribution:
# Edits thefile inline
mac2unix thefile
# Takes origfile as an input, outputs to dstfile
mac2unix -n origfile dstfile
This command will not munge files which have already expected line terminators, which is a bonus. And the reverse (`unix2mac`) also exists.
Note that `mac2unix` is the same as `dos2unix -c mac`.
Problem
Firstly I would say that I have read this post however I still have problems for the `CR line terminators`. There is a file called `build_test.sh`, I edited in `leafpad` and it can be displayed right in `Vim`: ``` cp ~/moonbox/llvm-2.9/lib/Transforms/MY_TOOL/$1 test.cpp cd ~/moonbox/llvm-obj/tools/TEST_TOOL/ make make install cd - ``` However: - Using `cat build_test.sh` it outputs nothing. - Using `more build_test.sh` it outputs:`cd - install/llvm-obj/tools/TEST_TOOL/Y_TOOL/$1 test.cpp` - Using `less build_test.sh` it outputs: `cp ~/moonbox/llvm-2.9/lib/Transforms/MY_TOOL/$1 test.cpp^Mcd ~/moonbox/llvm-obj/tools/TEST_TOOL/^Mmake^Mmake install^Mcd -` The result of `file build_test.sh` is: ``` build_test.sh: ASCII text, with CR line terminators ``` Following this post, the `^M` no longer exists however there is no more line break :-( The result of `file build_test_no_cr.sh` is now: ``` build_test_nocr.sh: ASCII text, with no line terminators ``` The solution can be seen here. However I still would like why `cat` displays nothing and `more` displays so odd result. In addition why `dos2unix` and `set fileformat=unix` in Vim fails for this case. ps: I guess that maybe my editor(Vim or leafpad?) generates only `\r` rather `\n` for the newline. How can it be so?