Question 278904 in Nginx Question posted in
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Nginx – How to make sort consider "_" in Bash?

I have a list of folders

$ ls -1 . 
_dns
linux
mariadb
minio
mongodb
nginx
_postgresdb
_python
_rabbitmq
redis
sphinx
supervisor
$

I would like to have them in the lexicographic order (the order provide by e.g. the vim sort):

$
_dns
_postgresdb
_python
_rabbitmq
linux
mariadb
minio
mongodb
nginx
redis
sphinx
supervisor
$

I don’t succeed to do that with the unix sort:

$ ls -1 . | sort
_dns
linux
mariadb
minio
mongodb
nginx
_postgresdb
_python
_rabbitmq
redis
sphinx
supervisor
$

even with options:

$ ls -1 . | sort  -g
_dns
linux
mariadb
minio
mongodb
nginx
_postgresdb
_python
_rabbitmq
redis
sphinx
supervisor
$

$ ls -1 . | sort  -b
_dns
linux
mariadb
minio
mongodb
nginx
_postgresdb
_python
_rabbitmq
redis
sphinx
supervisor
$

$ ls -1 . | sort  -n
_dns
linux
mariadb
minio
mongodb
nginx
_postgresdb
_python
_rabbitmq
redis
sphinx
supervisor
$

Note: this question as been answered in a much better way in Unix sort treatment of underscore character

Tags:

2

Answers


  1. 0

    As this post suggests, the issue is in the locale settings.

    Use POSIX C locale to get the result you expect.

    $ cat tmp/filelist.txt  | LC_COLLATE=C /usr/bin/sort
_dns
_postgresdb
_python
_rabbitmq
linux
mariadb
minio
mongodb
nginx
redis
sphinx
supervisor

    While with en_US.utf8 locale you would get what you are getting now.

    $ cat tmp/filelist.txt  | LC_COLLATE=en_US.utf8 /usr/bin/sort 
_dns
linux
mariadb
minio
mongodb
nginx
_postgresdb
_python
_rabbitmq
redis
sphinx
supervisor

    Note that this answer is based on sort from GNU coreutils version 8.32.

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  2. 0

    If you want a persistent solution you can export LC_COLLATE

    $ ls -1  | sort

_dns
linux
mariadb
minio
mongodb
nginx
_postgresdb
_python
_rabbitmq
redis
sphinx
supervisor

    $ export LC_COLLATE=C
$ ls -1  | sort

_dns
_postgresdb
_python
_rabbitmq
linux
mariadb
minio
mongodb
nginx
redis
sphinx
supervisor
    Login or Signup to reply.
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