Shell Programming and Scripting

When you post an item you can just delete the files.

When you post
an item you
can just delete
the files

STRING="When you post an item you can just delete the files."
WORDS=0
for WORD in $STRING;do
    printf "$WORD "
    let WORDS++ ; [[ $WORDS -gt 2 ]] && WORDS=0
    [[ $WORDS -eq 0 ]] && printf "\n"
done
printf "\n"

str="When you post an item you can just delete the files."

echo $str  | awk '
	{	for ( i=1; i<=NF; i++ ) { 
			printf $i FS; 
			if ( i%3 == 0 )
				printf "\n"
		}
	} END { printf "\n" }
'

awk '{printf "%s" (NR%3?" ":"\n"),$0} END {print ""}' RS=" " file
When you post
an item you
can just delete
the files.

xargs -n 3 < file

$ var="When you post an item you can just delete the files."
$ printf "%s %s %s\n" $var
When you post
an item you
can just delete
the files.