Re: wrong result from wc

[Eric Blake]

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According to Manu Hack on 1/18/2008 12:59 AM:
| Hi,
|
| I have a data file attached.  When I run

Please restrain from posting 5 megabyte files to every reader of this list
- - first try to narrow your problem down to something MUCH smaller.

|
| wc -l < r.dat
|
| it gives 999.

As well it should - your file only contained 999 newlines.

|
| but when I open the file with vim, it shows 1000 lines.  Also,

POSIX defines a line as text ending with a newline.  So even though there
are 1000 rows (and vim shows all 1000 rows), there are only 999 complete
lines, and the file ends in an incomplete line and is not a text file (the
POSIX definition of a text file includes the stipulation on no incomplete
line unless the file is empty).

|
| cut -d ' ' -f1 r.dat | wc -l
|
| gives 1000.

As well it should, since cut puts a newline after everything that it cuts
from the file, whether or not it is cutting from an incomplete line.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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