tag 9719 notabug thanks On 10/10/2011 10:55 AM, Ovear wrote:
[root@x3430-20836 ~]# 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.
[root@x3430-20836 ~]# echo " aa bb cc dd ee "| tr -s " " aa bb cc dd ee [root@x3430-20836 ~]# 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 [email protected] +1-801-349-2682 Libvirt virtualization library http://libvirt.org
