perdition.imaps: command not found

Have You tried accessing the binary with the full path?

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/sbin/perdition.imaps - from package: perdition

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