unigenwidth: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/unigenwidth - from package: unifont-bin

You may install the required package with command apt-get install {package}

Error in other languages:
unigenwidth: bevel nie gevind nie
unigenwidth: comandă negăsită
unigenwidth: comando não encontrado
unigenwidth: commande introuvable
unigenwidth: command not found
unigenwidth: käsku ei ole
unigenwidth: không tìm thấy lệnh
unigenwidth: komanda nerasta
unigenwidth: Kommando nicht gefunden.
unigenwidth: kommandot finns inte
unigenwidth: komut yok
unigenwidth: nie znaleziono polecenia
unigenwidth: níor aimsíodh an t-ordú
unigenwidth: no se encontró la orden
unigenwidth: no s'ha trobat l'ordre
unigenwidth: opdracht niet gevonden
unigenwidth: parancs nem található
unigenwidth: perintah tidak ditemukan
unigenwidth: príkaz nenájdený
unigenwidth: příkaz nenalezen
unigenwidth: команда не найдена
unigenwidth: командата не е открита
unigenwidth: 命令找不到
unigenwidth: コマンドが見つかりません