apertium-desxlsx: 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/apertium-desxlsx - from package: apertium

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

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