Paste -d ' ' the output of the command "ls -l" with the output of the command "tr 'A-Z' 'a-z' the output of the command "sort -u the output of the command "cut -d , -f 4 the output of the command "grep -P '[A-Z][a-z]+' test.txt"
paste -d ' ' <(ls -l) <(tr 'A-Z' 'a-z' <(sort -u $(cut -d , -f 4 <(grep -P '[A-Z][a-z]+' test.txt))))