We Saw a Chicken …

$ seq 1 12
1
2
3
4
5
6
7
8
9
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11
12

11 Responses to “seq for OS X”

1. jasper Says:
   February 21st, 2008 at 13:44:53
   .. or install macports and do a
   $ sudo port install coreutils
   which will get you a gseq:
   $ gseq 1 12
   1
   2
   3
   4
   5
   6
   7
   8
   9
   10
   11
   12
2. scruss Says:
   February 21st, 2008 at 15:23:21
   Yeah, but it’s called ’seq’ in all the scripts I have, and it wouldn’t be worth me having macports for just one command.
3. markus Says:
   March 25th, 2008 at 19:04:13
   Hi, agreed, it bothers me too…. so much did i want this functionality without needing to do darwin ports … and having seen your recent post on this topic, i’ve just knocked together a 2 min bash script to add this functionality without actually installing anything,

   i just made this script and called it /usr/bin/seq
   chmod +x /usr/bin/seq
   and i’m good to go..

   … i also hope this posts ok…. i have a feeling it may get filtered by the forum… maybe you can figure it out again

   #!/bin/bash
   # marks rude seq replacement for osx.

   if [ $# -eq 2 ]
   then
   let from=”$1″;
   let to=”$2″;
   elif [ $# -eq 1 ]
   then
   let from=”0″;
   let to=”$1″;
   else
   echo “USAGE: seq [num from] [num to]”
   exit 1;
   fi

   while [ $from -lt $to ]
   do
   printf “$from “;
   from=$[$from+1]
   done
   printf “$from “;

4. Robert Borkowski Says:
   April 15th, 2008 at 09:44:06
   sudo ln -s /opt/local/bin/gseq /opt/local/bin/seq

   

5. scruss Says:
   April 15th, 2008 at 19:19:53
   see the second comment, Robert. And /opt is a crime against nature!
6. scruss Says:
   April 15th, 2008 at 19:28:00
   Oh, and there’s also always ‘jot’, seq’s weird hippie cousin which is installed by default: http://www.nevdull.com/2007/09/24/gnu-seqs-cousin-on-freebsd-is-jot/

   Nice try with that shell, Markus. It would work for maybe 80% of uses, but would fail for the rest.

7. scruss Says:
   April 15th, 2008 at 19:39:05
   Playing with jot a bit (I’m on a train), I rather like it. What jot can do in one command

   jot -w %02x 255 0

   (printing hexadecimal numbers 00 .. ff) seq needs a composite command:

   seq 0 255 | xargs -n1 printf “%02x\n”

   neat!

8. prof_k Says:
   May 28th, 2008 at 07:26:33
   Just an improvement of the bash script (which doesn’t yet work properly for jot with an increment). Further improvement is welcome !

   #!/bin/bash
   # marks rude seq replacement for osx.

   # set -ex

   method=1

   case ${method} in
   1)
   # a simple bash script:
   if [ $# -eq 2 ]
   then
   let from=”$1″;
   let to=”$2″;
   let step=1
   elif [ $# -eq 1 ]
   then
   let from=”0″;
   let to=”$1″;
   let step=1
   elif [ $# -eq 3 ]
   then
   let from=”$1″
   let to=”$3″
   let step=”$2″
   else
   echo “USAGE: seq [num from] [[num step]] [num to]”
   exit 1;
   fi

   while [ $from -le $to ]
   do
   printf “$from \n”;
   from=$[$from+$step]
   done
   ;;
   2)
   # Using the jot command:

   if [ $# -eq 2 ]
   then
   let numstep=`expr ‘(’ $2 - $1 + 1 ‘)’ `
   jot $numstep $1 $2
   elif [ $# -eq 3 ]
   then
   let numstep=`expr ‘(’ $3 - $1 + 1 ‘)’ / $2 `
   let to=`expr $3 - ‘(’ ‘(’ $3 - $1 + 1 ‘)’ % $numstep ‘)’ `
   jot ${numstep} $1 $to
   else
   echo “USAGE: seq [num from] [[num step]] [num to]”
   exit 1;
   fi
   ;;
   esac

9. scruss Says:
   May 28th, 2008 at 08:33:05
   thanks. Wordpress may have munged the quotes - I hate when it does that.
10. someone Says:
    June 23rd, 2008 at 18:31:35
    Thanks, but the seq builds are for PPC and not for intel.

    but the macports idea is good!

11. scruss Says:
    June 23rd, 2008 at 22:20:36
    erm, but the sh-utils build trick is platform-neutral.

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