wcat: 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/wcat - from package: sac

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