proxychains: 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/proxychains - from package: proxychains

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

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