Shell Programming and Scripting

awk '{ sub("\r$", ""); print }' ftpservers.txt > unixfile.txt
++ awk '{ sub("\r$", ""); print }' ftpservers.txt
awk '
NR%3==1{a[++i]=$0}
NR%3==2{u[i]=$0}
NR%3==0{p[i]=$0}
END{for(j=1;j<=i;j++){print a[j], u[j], p[j], a[j] "_folderlist.txt"}}' unixfile.txt
++ awk '
NR%3==1{a[++i]=$0}
NR%3==2{u[i]=$0}
NR%3==0{p[i]=$0}
END{for(j=1;j<=i;j++){print a[j], u[j], p[j], a[j] "_folderlist.txt"}}' unixfile.txt
80.xx.xx.76 ftpxxac28 rO#lanL 80.xx.xx.76_folderlist.txt
.... (20 others) ....
80.xx.xx.147 ftpxxac28 rO#=lanL 80.xx.xx.147_folderlist.txt
while read ipaddress user passwd flist
do
  while read dir
  do
        if [[ $ipaddress =~ ^192\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
          echo "private IP - skipping"
else
ftp -n -v $ipaddress <<EOT
        fi
  done < $flist
done
++ read ipaddress user passwd flist
STOPS

awk '
NR%3==1{a[++i]=$0}
NR%3==2{u[i]=$0}
NR%3==0{p[i]=$0}
END{for(j=1;j<=i;j++){print a[j], u[j], p[j], a[j] "_folderlist.txt"}}' unixfile.txt |
while read ....