seqwords: 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/seqwords - from package: embassy-domsearch

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

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