Should not an increment of zero be flagged as an error, and not ignored?  Regards  Leslie Mr. Leslie Satenstein Montréal Québec, Canada From: Bernhard Voelker To: Маренков Евгений ; 23110@debbugs.gnu.org Sent: Thursday, March 24, 2016 1:44 PM Subject: bug#23110: seq apparent bug On 03/24/2016 04:28 PM, Маренков Евгений wrote: > I have recently noticed an apparent bug in 'seq'. If one runs > seq -w 2 1 10 > everything works fine. > But > seq -w 2 0 10 > falls into endless loop ... Thanks for the report. However, I don't think this is a bug but more a misunderstanding on your side how seq works.  It's clearly documented that the second number (if 3 are given) is the increment.  As you passed 0 as value, the target 10 is never reached, and therefore seq continues to produce output.  Thus, it exactly does what you told it to do.  What else would you expect? Have a nice day, Berny