JOT(1)                                                                  JOT(1)

       jot - print sequential or random data

       jot [-rbwcn] [-s string] [-p precision] [reps] [begin] [end] [s]

       Jot  prints  increasing, decreasing, random, or redundant data, usually
       numbers, one per line.  The default is sequential data.

       Jot's stdout is usually used as input to  a  pipeline  or  to  compress
       repetitive strings in an argument list.

       The last four arguments indicate, respectively, the number of data, the
       lower bound, the upper bound, and the step size or,  for  random  data,
       the  seed.   While  at  least one of them must appear, any of the other
       three may be omitted, and will be considered as such  if  given  as  -.
       Any three of these arguments determines the fourth.  If four are speci-
       fied and the given and computed values  of  reps  conflict,  the  lower
       value  is  used.   If  fewer  than  three  are  specified, defaults are
       assigned left to right, except for s, which assumes its default  unless
       both begin and end are given.

       Defaults  for the four arguments are, respectively, 100, 1, 100, and 1,
       except that when random data  are  requested,  s  defaults  to  a  seed
       depending  upon  the  time  of day.  Reps is expected to be an unsigned
       integer, and if given as zero is taken to be infinite.  Begin  and  end
       may  be  given as real numbers or as characters representing the corre-
       sponding value in ASCII.  The last argument must be a real number.

       Random numbers are obtained through random(3).

       The name jot derives in part from iota, a function in APL.

       -r     Generate random, instead of sequential data.

       -b word
              Print only word repetitively.

       -w word
              Print word with the generated data appended to it.  Octal,  hex-
              adecimal,  exponential,  ASCII,  zero padded, and right-adjusted
              representations are possible by using the appropriate  printf(3)
              conversion specification inside word, in which case the data are
              inserted rather than appended.

              This is an abbreviation for -w %c.

       -s     Print data separated by  string.   Normally,  newlines  separate

              Do  not print the final newline normally appended to the output.

       -p precision
              Print only as many digits or characters of the data as indicated
              by  the  integer precision.  In the absence of -p, the precision
              is the greater of the precisions  of  begin  and  end.   The  -p
              option  is overridden by whatever appears in a printf(3) conver-
              sion following -w.

       jot 21 -1 1.00
              Prints 21 evenly spaced numbers increasing from -1 to 1.

       jot -c 128 0
              Generated ASCII character set.

       jot -w xa%c 26 a
              Generate the strings "xaa" through "xaz".

       jot -r -c 160 a z | rs -g 0 8
              Generate 20 random 8-letter strings.

       jot -b yes 0
              Infinitely many "yes"'s, as yes(1).

       jot -w %ds/old/new/ 30 2 - 5
              Output thirty ed(1) substitution commands applying to  lines  2,
              7, 12, etc. to convert old to new.

       jot - 9 0 -.5
              By suitable choice of precision and step size we produce a stut-
              tering sequence 9, 9, 8, 8, 7, 7 and so on.

       jot -b x 512 >block
              The file block contains exactly 1024 bytes (512 "x0(rq's).

       expand -`jot -s, - 10 132 4`
              To set tabs four spaces apart starting from column 10 and ending
              in column 132.

       grep `jot -s "" -b . 80`
              Output all lines 80 characters or longer,

       John Kunze, updates by KS Braunsdorf,

       None known.

       rs(1l), ed(1), yes(1), printf(3), random(3), expand(1)

                                     LOCAL                              JOT(1)