On 3/19/26 20:26, Pádraig Brady wrote:
I do use this pattern quite a bit, but use grep '' to match everything.
E.g. grep -H --color '' /proc/sys/net/ipv4/*
I'm most often using '.' to match lines with content (which omits empty lines,
obviously):
... | grep -Hn .
or just matching the line beginning, i.e. the caret '^' character:
... | grep -Hn ^
I agree that this doesn't warrant to add something in cat(1), and
to define a certain filter pattern with grep(1) is more flexible.
Have a nice day,
Berny
