ecaccess-cosinfo: 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/ecaccess-cosinfo - from package: ecaccess

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

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