'tr' character class support?
mkroken at gmail.com
Fri Jul 10 17:15:48 EDT 2020
On 10.07.2020 22:45, Jordan Geoghegan wrote:
> Hey folks,
> Does the 'tr' utility support character classes in OpenWRT? I was
> playing around with an OpenWRT x86_64 VM and I noticed that 'tr' doesn't
> seem to support character classes.
> The command " echo HELLO | tr '[:upper:]' '[:lower:]' " does not
> convert to the text to lowercase as it should (and as required by
This would be expected behavior. OpenWrt disables tr character classes
in BusyBox by default, see :
I don't know what the size cost in the BusyBox binary is, but that will
likely be the deciding factor for such a change.
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