checktrans: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

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/checktrans - from package: emboss

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