Shell Programming and Scripting

ls -n $@ | awk -F: '
function max(a,b) {return a>b?a:b}
function toend(str,fld)
{ for(i=0; i<length(str); i++) {
    while(substr(str,i,1) != " " && i<length(str)) i++
    while(substr(str,i,1) == " " && i<length(str)) i++
    if (!--fld) return substr(str,i)
  }
  return ""
}
BEGIN {
    while("lsuser -c -a id ALL"  | getline) {
        U[$2]=$1; UW=max(UW,length($1))}
    while("lsgroup -c -a id ALL" | getline) {
        G[$2]=$1; GW=max(GW,length($1))}
}
{ printf "%10s %3s %-*s %-*s %11s %s\n", $1, $2, UW, U[$3], GW, G[$4], $5, toend($0,5)
}' FS=" "

 $ lsnew .
-rw-r--r--   1 root         system           168 Jul 23 2010  asset.d
-rwxrwxrwx   1 chubler      chubler        71314 Mar 18 2010  assetupload.csv
drwxrwxr-x   5 chubler      chubler          256 Oct 28 12:27 bin
drwxrwxr-x   5 chubler      chubler          256 Oct 31 2009  env
drwxrwxr-x   2 chubler      chubler        12288 Feb 07 06:55 images
-rw-r--r--   1 root         system       8492187 Jul 23 2010  test.dump

BEGIN {
    while("lsuser -c -a id ALL"  | getline) {
        U[$2]=$1; UW=max(UW,length($1))}
    while("lsgroup -c -a id ALL" | getline) {
        G[$2]=$1; GW=max(GW,length($1))}
}

{sub($3" +"$4, U[$3]" "$3" "G[$4])}