Remove carriage returns from files. This is especially useful for files created on Windoze that have carriage returns - one of the worst things about Windoze, in my opinion.
Syntax: nocrs [-v] file ...
| Option | Description | Default |
|---|---|---|
-v, --verbose |
Increase debugging messages. More instance of this option produce more debugging. | Debugging is not enabled |
Each file to process is specified as an argument on the command line.
$ echo -e 'This is a test\r' > test
$ od -ctx1 test
0000000 T h i s i s a t e s t \r \n
54 68 69 73 20 69 73 20 61 20 74 65 73 74 0d 0a
0000020
$ nocrs test
test
$ od -ctx1 test
0000000 T h i s i s a t e s t \n
54 68 69 73 20 69 73 20 61 20 74 65 73 74 0a
0000017
$
$ echo -e 'This is a test\r' > test
$ nocrs -v test
2019-02-17 10:23:56,404 INFO /home/mrbruno/bin/nocrs:45 processing test
2019-02-17 10:23:56,404 INFO /home/mrbruno/bin/nocrs:25 Backing up 'test' to '.test-20190217102356'
test
$
-
The script writes to the original files when carriage returns are present.
-
The script backups up the original file (see the example) using
cp -pvto preverse the file in case there are issues -
If a file does not contain carriage returns, there are no changes and the file is not backed up.
-
A great example of using this tool is Python scripts. Python on Unix will not be able to process the script!
$ cat test.py #! /usr/bin/env python print "Hello, Python world" $ od -ctx1 test.py 0000000 # ! / u s r / b i n / e n v 23 21 20 2f 75 73 72 2f 62 69 6e 2f 65 6e 76 20 0000020 p y t h o n \r \n p r i n t " H 70 79 74 68 6f 6e 0d 0a 70 72 69 6e 74 20 22 48 0000040 e l l o , P y t h o n w o r 65 6c 6c 6f 2c 20 50 79 74 68 6f 6e 20 77 6f 72 0000060 l d " \r \n 6c 64 22 0d 0a 0000065 $ chmod +x test.py $ ./test.py /usr/bin/env: ‘python\r’: No such file or directory $ python test.py Hello, Python world $