profanity: 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/profanity - from package: profanity

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

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