Re: printing words without newlines?

On 12/05/2024 05:57, David Chmelik wrote:

I'm learning more AWK basics and wrote function to read file, sort,
print.  I use GNU AWK (gawk) and its sort but printing is harder to get
working than anything... separate lines work, but when I use printf() or
set ORS then use print (for words one line) all awk outputs (on FreeBSD
UNIX 14 and Slackware GNU/Linux 15) is a space (and not even newline
before shell prompt)... is this normal (and I made mistake?) or am I
approaching it wrong?  I recall BASIC prints new lines, but as I learned
basic C and some derivatives, I'm used to newlines only being specified...
------------------------------------------------------------------------
# print_file_words.awk
# pass filename to function
BEGIN { print_file_words("data.txt"); }
 # read two-column array from file and sort lines and print
function print_file_words(file) {
# set record separator then use print
# ORS=" "
   while(getline<file) arr[$1]=$0
   PROCINFO["sorted_in"]="@ind_num_asc"
   for(i in arr)
   {
     split(arr[i],arr2)
     # output all words or on one line with ORS
     print arr2[2]
     # output all words on one line without needing ORS
     #printf("%s ",arr2[2])
   }
}
------------------------------------------------------------------------
# sample data.txt
2 your
1 all
3 base
5 belong
4 are
7 us
6 to

You need to set ORS in the BEGIN { } section (or on the command line).
See <https://www.gnu.org/software/gawk/manual/html_node/Output-Separators.html> for an example - just replace the "\n\n" in the example with " " to see the effect you are looking for.
--
Bruce Horrocks
Surrey, England