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bug#9719: i found a bug


From: Eric Blake
Subject: bug#9719: i found a bug
Date: Mon, 10 Oct 2011 11:20:20 -0600
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.23) Gecko/20110928 Fedora/3.1.15-1.fc14 Lightning/1.0b3pre Mnenhy/0.8.4 Thunderbird/3.1.15

tag 9719 notabug
thanks

On 10/10/2011 10:55 AM, Ovear wrote:
address@hidden ~]# echo " aa           bb                 cc
dd      ee   "| tr -s [:blank:]
  a           bb                 cc             dd      ee

Thanks for the report. However, this is not a bug in tr, but a bug in your usage of the shell. I suspect that you have a file in the current directory that is named with a single character, such that the shell glob [:blank:] is expanding to the name of that file.

address@hidden ~]# echo " aa           bb                 cc
dd      ee   "| tr -s " "
  aa bb cc dd ee
address@hidden ~]#

i can not use like "[:blank:]"

Yes you can, if you quote it so the shell can't treat it as a glob:

# echo " aa           bb                 cc
> dd      ee   "| tr -s "[:blank:]"
 aa bb cc dd ee

--
Eric Blake   address@hidden    +1-801-349-2682
Libvirt virtualization library http://libvirt.org





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