cvschroot: 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/cvschroot - from package: cvsutils

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

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