dh_clifixperms: 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/dh_clifixperms - from package: cli-common-dev

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

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