pj2if: 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/pj2if - from package: ctsim

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

Error in other languages:
pj2if: bevel nie gevind nie
pj2if: comandă negăsită
pj2if: comando não encontrado
pj2if: commande introuvable
pj2if: command not found
pj2if: käsku ei ole
pj2if: không tìm thấy lệnh
pj2if: komanda nerasta
pj2if: Kommando nicht gefunden.
pj2if: kommandot finns inte
pj2if: komut yok
pj2if: nie znaleziono polecenia
pj2if: níor aimsíodh an t-ordú
pj2if: no se encontró la orden
pj2if: no s'ha trobat l'ordre
pj2if: opdracht niet gevonden
pj2if: parancs nem található
pj2if: perintah tidak ditemukan
pj2if: príkaz nenájdený
pj2if: příkaz nenalezen
pj2if: команда не найдена
pj2if: командата не е открита
pj2if: 命令找不到
pj2if: コマンドが見つかりません