Регулярка не матчит

$ cat file
col1|col2|col3|col4|col5|col6|col7|col8|col9|col10|col11
col1|col2||col4|col5|col6|col7|col8|col9|col10|col11

$ cat file | awk -F'|' '{ if (length($3) != 0) print $0 }' 
col1|col2|col3|col4|col5|col6|col7|col8|col9|col10|col11

echo 'col1|col2|col3|col4|col5|col6' | perl -F'\|' -ale 'print $F[2]'

awk -F '|' '$3'

grep -E '^([^|]*\|){2}[^|]'

$ echo 'col1|col2|col3|col4' | perl -F'|' -ale 'print $F[2]'
l

$ echo 'col1|col2|col3|col4' | perl -F'\|' -ale 'print $F[2]'
col3

$ bash --version
GNU bash, version 4.3.46(1)-release (x86_64-pc-linux-gnu)
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

$ perl --version

This is perl 5, version 22, subversion 1 (v5.22.1) built for x86_64-linux-gnu-thread-multi
(with 58 registered patches, see perl -V for more detail)
...