suricata: 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/suricata - from package: suricata

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

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