I opened a file using vim on Ubuntu, and the following is displayed at the bottom of the screen:
"file.py" [noeol] 553L, 16620C
What does noeol indicate?
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Related: unix.stackexchange.com/questions/263869/…– Kusalananda ♦Commented Apr 14, 2017 at 7:42
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Related unix.stackexchange.com/q/31947/100397– Chris DaviesCommented Sep 18, 2019 at 20:30
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4 Answers
Unix editors like vi and vim will always put newlines (\n) at the end of every line - especially including the last line. If there is no end-of-line (eol) on the last line, then it is an unusual situation and the file most certainly was not created by a standard UNIX editor.
This unusual situation is brought to your notice by the [noeol] flag in the vim editor; other editors probably have similar flags and notifications.
That the last line in the file doesn't have a newline (\n)
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2@Bon Ami: Some programs, when reading your text file, need the
\nat the end of line to consider it as a completed line (with a trailing newline char). The following example shows a file which may look like a complete line at a casual glance in a text editor, butwcdoes not condider it as a line:printf "x">"file-no-newline"; wc -l <"file-no-newline"-- Outpute is:0.. the noeol is just a visual aid to let you know the status..– Peter.OCommented Feb 16, 2012 at 4:50
This means the OS where you viewing the file is not able to detect the line-ending of the file (if the file has any at all). Sometimes this happenes when you move file(s) across OSes(i,e.. from MS to *nix os)
In vim, if the file has windows carriage return "^M", you can fix it with the following command in vim:
:%s/^M/\r/g
meaning:
% => select the whole buffer
s => substitute
/^M/ => find Windows carriage return.
/\r/ => replace it with *nix carriage return
Note: in Mac OX, ^M is ctl+v && ctrl+m
Its 'NO EOL' - no end of line indicator. Very helpful if you end up opening a very large file (>1GB). Vim tries to pull all that in 1 line. This indicator helps me quickly close the file before it screws up my OS.
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