comigrate: 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/comigrate - from package: coinst

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

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