--show --usernames command taking forever (v.6.2.6)

[b8vr]

How is this problem dealt with normally?

As Snoopy wrote, you should make some sort of script.
You could possibly use something like this linux bash script, but python may be a faster choice:

Code:

#!/bin/bash

mapfile -t source < $1
mapfile -t potfile < $2

for i in "${!source[@]}"
do
  for x in "${!potfile[@]}"
  do
      hash1=`echo "${source[$i]}" | cut -d":" -f2`
      hash2=`echo "${potfile[$x]}" | cut -d":" -f1`
      if [ "$hash1" == "$hash2" ]
      then
        if [ "$hash1" != "" ]
        then
            plain=`echo "${potfile[$x]}" | cut -d":" -f2-`
            printf "${source[$i]}:$plain\n"
            break
        fi
      fi
  done
done

This script would be executed like

./concat.sh sourcefile potfile > concat.txt