Today I had to copy some MySQL data from Debian server into test environment on my MacBook. While importing data from tab delimited text files, I noticed warnings that data in the last column of several tables was being truncated. I looked at the tables and noticed MySQL doing some very strange formatting when printing them. It looked almost as if last column was padded with a bunch of white space. I opened import file in TextWrangler and it appeared fine, but when I looked in document options, I saw this:
I can't figure out how to do this on a Mac and it seams a lot of tutorials online are just showing you how to do it on windows. It would be nice to have something more up-to-date for mac Any Help Is Greatly Appreciated Thanks.
- From the File menu, choose Save File As, and then click the drop-down button next to the Save button. The Advanced Save Options dialog box is displayed. Under Encoding, select the encoding to use for the file. Optionally, under Line endings, select the format for end-of-line characters.
- You wish to convert it to DOS format, writing the result to a file called output.txt. The conversion will be performed in an environment in which the line separator is a single linefeed (LF). Methods Overview. There are many different ways to convert from UNIX to DOS line endings, of which those presented here are only a selection.
- Just give the name of your file to dos2unix as an argument, and it will convert the file's line endings to UNIX format: dos2unix foo.txt # Replace foo.txt with the name of your file There are other options in the rare case that you don't want to just modify your existing file; run man dos2unix for details.
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The good ol' EOL (end-of-line) character...
Different operating systems use different characters to mark the end of line:
- Unix / Linux / OS X uses LF (line feed, 'n', 0x0A)
- Macs prior to OS X use CR (carriage return, 'r', 0x0D)
- Windows / DOS uses CR+LF (carriage return followed by line feed, 'rn', 0x0D0A)
Since some of the files were very big, instead of changing line endings in TextWrangler I decided to use command line (shocking, I know).
First I executed
to confirm existence of the dreaded ^M (carriage return) at the end of every line, and then ran
to generate new files without CR characters.
tr
What's a Carriage and why is it Returning? Carriage Return Line Feed WHAT DOES IT ALL MEAN!?!
The paper on a typewriter rides horizontally on a carriage. The Carriage Return or CR was a non-printable control character that would reset the typewriter to the beginning of the line of text.
However, a Carriage Return moves the carriage back but doesn't advance the paper by one line. The carriage moves on the X axes...
And Line Feed or LF is the non-printable control character that turns the Platen (the main rubber cylinder) by one line.
Hence, Carriage Return and Line Feed. Two actions, and for years, two control characters.
Every operating system seems to encode an EOL (end of line) differently. Operating systems in the late 70s all used CR LF together literally because they were interfacing with typewriters/printers on the daily.
Windows uses CRLF because DOS used CRLF because CP/M used CRLF because history.
Mac OS used CR for years until OS X switched to LF.
Unix used just a single LF over CRLF and has since the beginning, likely because systems like Multics started using just LF around 1965. Saving a single byte EVERY LINE was a huge deal for both storage and transmission.
Fast-forward to 2018 and it's maybe time for Windows to also switch to just using LF as the EOL character for Text Files.
Why? For starters, Microsoft finally updated Notepad to handle text files that use LF.
BUT
Would such a change be possible? Likely not, it would break the world. Here's NewLine on .NET Core.
Regardless, if you regularly use Windows and WSL (Linux on Windows) and Linux together, you'll want to be conscious and aware of CRLF and LF.
I ran into an interesting situation recently. First, let's review what Git does
You can configure .gitattributes to tell Git how to to treat files, either individually or by extension.
When
is set, git will automatically convert files quietly so that they are checked out in an OS-specific way. If you're on Linux and checkout, you'll get LF, if you're on Windows you'll get CRLF.
Viola on Twitter offers an important clarification:
'gitattributes controls line ending behaviour for a repo, git config (especially with --global) is a per user setting.'
99% of the time system and the options available works great.
Except when you are sharing file systems between Linux and Windows. I use Windows 10 and Ubuntu (via WSL) and keep stuff in /mnt/c/github.
However, if I pull from Windows 10 I get CRLF and if I pull from Linux I can LF so then my shell scripts MAY OR MAY NOT WORK while in Ubuntu.
I've chosen to create a .gitattributes file that set both shell scripts and PowerShell scripts to LF. This way those scripts can be used and shared and RUN between systems.
How To Convert Line Endings In Visual Studio For Mac Free
You've got lots of choices. Again 99% of the time autocrlf is the right thing.
From the GitHub docs:
You'll notice that files are matched--*.c, *.sln, *.png--, separated by a space, then given a setting--text, text eol=crlf, binary. We'll go over some possible settings below.
text=auto- Git will handle the files in whatever way it thinks is best. This is a good default option.
text eol=crlf- Git will always convert line endings to
CRLFon checkout. You should use this for files that must keepCRLFendings, even on OSX or Linux.
- Git will always convert line endings to
text eol=lf- Git will always convert line endings to
LFon checkout. You should use this for files that must keep LF endings, even on Windows.
- Git will always convert line endings to
binary- Git will understand that the files specified are not text, and it should not try to change them. The
binarysetting is also an alias for-text -diff.
- Git will understand that the files specified are not text, and it should not try to change them. The
Again, the defaults are probably correct. BUT - if you're doing weird stuff, sharing files or file systems across operating systems then you should be aware.
Edward Thomson, a co-maintainer of libgit2, has this to say and points us to his blog post on Line Endings.
I would say this more strongly. Because `core.autocrlf` is configured in a scope that's per-user, but affects the way the whole repository works, `.gitattributes` should _always_ be used.
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If you're having trouble, it's probably line endings. Edward's recommendation is that ALL projects check in a .gitattributes.
How To Convert Line Endings In Visual Studio For Mac 2017
The key to dealing with line endings is to make sure your configuration is committed to the repository, using .gitattributes. For most people, this is as simple as creating a file named .gitattributes at the root of your repository that contains one line:* text=auto
Hope this helps!
How To Convert Line Endings In Visual Studio For Mac Community
I hope Microsoft bought Github so they can fix this CRLF vs LF issue.
— Scott Hanselman (@shanselman) June 4, 2018* Typewriter by Matunos used under Creative Commons
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About Scott
How To Convert Line Endings In Visual Studio For Mac Download
Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, consultant, father, diabetic, and Microsoft employee. He is a failed stand-up comic, a cornrower, and a book author.