How to remove all `^M` characters from an iOS project in Mac copied from Windows?

Question

I had to clone an iOS project from github in my Windows. Then when I copied that project into my Mac using a pen drive, the project is no more buildable and many files showing ^M characters in lines end due to difference of End of Line Character formats in different platform.

So what is the proper way to make this project buildable on my Mac?

You want to invole `fromdos`. Does mac have this tool available on the command line? — selbie, Apr 20 '20 at 06:45
Which programming language? Most code will compile just fine with those `^M` chars hanging around. They get treated as whitespace. — selbie, Apr 20 '20 at 06:46
Have you tried compiling with out worrying about it? What error do you get? I surmise you won't get any errors compiling code with end-of-line differences. — selbie, Apr 20 '20 at 06:48
dos2unix is what you seek: https://formulae.brew.sh/formula/dos2unix#default — selbie, Apr 20 '20 at 06:52
Actually project was showing huge number of git diff contents and also vi editors showing unwanted characters at end of line and build failed. I will check and let you know if it happened for eol. — Sazzad Hissain Khan, Apr 20 '20 at 06:54
http://aerostitch.github.io/programming/perl/oneliners/perl-dos2unix_mac2unix.html (use the dos to unix, not mac to unix script) from that link — selbie, Apr 20 '20 at 08:08
https://www.cyberciti.biz/faq/howto-unix-linux-convert-dos-newlines-cr-lf-unix-text-format/ (scroll down for the perl and sed scripts) — selbie, Apr 20 '20 at 08:09
@selbie how can I run infile command `tr -d '\r' < input.file > output.file` for all of my files in project — Sazzad Hissain Khan, Apr 20 '20 at 08:11

score 1 · Accepted Answer · edited Apr 24 '20 at 11:56

1

You can use dos2unix:

$ brew install dos2unix
$ dos2unix *.swift

Without dos2unix:

for file in *.swift; do tr -d '\r' < $file > temp && mv temp $file; done

edited Apr 24 '20 at 11:56

Sazzad Hissain Khan

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answered Apr 20 '20 at 11:33

Yonat

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My Mac is restricted to access internet. Is there any work around? – Sazzad Hissain Khan Apr 20 '20 at 12:44
You can do `tr -d '\r'` to each file (by looping over them). See https://unix.stackexchange.com/questions/536655/is-there-any-way-to-use-the-tr-command-in-place and https://stackoverflow.com/questions/10523415/execute-command-on-all-files-in-a-directory for example. – Yonat Apr 20 '20 at 13:37
Can you explain with command that will work infile? I cannot use different output file. Thanks for your time. – Sazzad Hissain Khan Apr 20 '20 at 13:43
`tr -d '\r' < infile > outfile && mv outfile infile` – Yonat Apr 20 '20 at 14:11
it is not feasible to run this command for all files in my project. Could you please answer with the looping? – Sazzad Hissain Khan Apr 20 '20 at 14:13
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Try this: `for file in *.swift; do tr -d '\r' < $file > temp && mv temp $file; done` – Yonat Apr 20 '20 at 14:17

How to remove all `^M` characters from an iOS project in Mac copied from Windows?

1 Answers1