predict-g1yyh: 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/predict-g1yyh - from package: predict

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

Error in other languages:
predict-g1yyh: bevel nie gevind nie
predict-g1yyh: comandă negăsită
predict-g1yyh: comando não encontrado
predict-g1yyh: commande introuvable
predict-g1yyh: command not found
predict-g1yyh: käsku ei ole
predict-g1yyh: không tìm thấy lệnh
predict-g1yyh: komanda nerasta
predict-g1yyh: Kommando nicht gefunden.
predict-g1yyh: kommandot finns inte
predict-g1yyh: komut yok
predict-g1yyh: nie znaleziono polecenia
predict-g1yyh: níor aimsíodh an t-ordú
predict-g1yyh: no se encontró la orden
predict-g1yyh: no s'ha trobat l'ordre
predict-g1yyh: opdracht niet gevonden
predict-g1yyh: parancs nem található
predict-g1yyh: perintah tidak ditemukan
predict-g1yyh: príkaz nenájdený
predict-g1yyh: příkaz nenalezen
predict-g1yyh: команда не найдена
predict-g1yyh: командата не е открита
predict-g1yyh: 命令找不到
predict-g1yyh: コマンドが見つかりません