insdseqget: 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/insdseqget - from package: ncbi-tools-bin

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

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