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this one only needs to start one time and will self-restart ...
#! /bin/ksh

endtime=$(date +%H":"%M) ## assumes endtime is exactly 24 hours after starttime

processfile(){
...

$
$ cat inputfile.csv
VALUE,USER1,relatedUSER1,relatedUSER2
-1,userA,userB,userC
1,userN,userD,userB
0,userF,userH,userG
0,userT,userH,userB
1,userN,userB,userA
-1,userA,userF,userC...

$ cat file | xargs -n 2 echo | tr " " ","
content1,content2
content1,content2
content1,content2
content1,content2



$ cat file | xargs -n 3 echo | tr " " ","
content1,content2,content1...

No. Try awk 'NR%2 {x=$1;next} {print x","$1}' file
content1,content2
content1,content2
content1,content2
content1,content2


And, in my other post, remove one comma from -d",,\n". Sorry,...

Another paste approach:
paste -d, - - < file
Another awk approach:
awk 'NR%2{ORS=OFS}!(NR%2){ORS=RS}1' OFS=, file

I don't know why, but it works for me:
$ cat file

content1
content2
content3

content1
content2
content3

content1
content2
content3

$ xargs -n3 < file | tr ' ' ','...

Try also:awk '{$1=$1}1' RS="" OFS="," file

paste -s -d",,\n" file
content1,content2,content3
content1,content2,content3
content1,content2,content3

Another approach:
xargs -n3 < file | tr ' ' ','

awk -F"\n" 'BEGIN{RS=""; OFS=",";} {print $1,$2,$3}' file

Did you try the hint in https://www.unix.com/302820927-post10.html? (https://www.unix.com/302820927-post10.html)

The commas for decimal point are most likely related to your locale.

Unfortunately different Unix flavors have different ways of setting this, from the shell try:
$ LC_ALL=en_US.UTF-8 ; export...

You could also try an awk solution:

awk -F, '
NR>1 {
split(tolower(substr($0, length($1","$2",")+1)), words, "[^A-Za-z_\047]")
for(wnum in words) {
w=words[wnum]
...

Hi Kraterions,

that wasn't a script, but rather a command line one off, as a script it would look like this, with advised addons.

#!/usr/bin/perl
use strict;

open(my $tweets, $ARGV[0])||...