Re: [tlug] Joining lists on the command line

[Ian Barwick <barwick@example.com>]

2009/9/11 BALUTA Chris <baluta@example.com>:
> Leo Howell wrote:
>
>> What's the most unixy way to put them into a comma-separated list using
>> the command line?
>
>   Well, I think almost by definition there isn't a 'most
> unixy' way to do much of anything, which is one of the fun things
> about the unix command line.
>
>   But, how about this:  echo `<your command>` | sed -e 's/ /,/g'
>
>  For example, say ls gives this:
>
>  myprompt> ls
> afile  bfile  cfile  dfile  theLastFile
>
>  myprompt> echo `ls` | sed -e 's/ /,/g'
>
> gives:
>  afile,bfile,cfile,dfile,theLastFile
>
>  myprompt> echo `seq 1 20` | sed -e 's/ /,/g'
>
>  leads to:
> 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20
>
>  Of course, you'll have problems w/spaces if your command
> output for one line has spaces in it (e.g. output from grep)...

Not very short, but hopefully meets some sort of "unixy" criteria and
doesn't have the space problem:

ls | perl -e 'while(<>) { chomp; push @l, $_ }; print join(",",@l);'

To make it short you could of course just put the perl into its own
shell script file...

Ian Barwick