sorry,also --stable was used for sort.On Tue, Feb 24, 2015 at 9:30 AM, Tomáš Kyselica <tomas.kyselica@gmail.com> wrote:I expected that second column will be sorted A1,A2,B1,B2,C1,C2, but it iscat all_nouns.txt | cut -f1,3 | sort -t\t -k2,1Dear Sir/Madam,I have issuing this command:only almost true; at the end of file, I see:C2... [many C2]C2B1B1B2B2A2C1A2which is not sorted.Attaching the file.RegardsTomas Kyselica