wossinput: 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
/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/wossinput - from package: emboss

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