fastaq_search_for_seq: 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/fastaq_search_for_seq - from package: fastaq

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

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