patcol: 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/patcol - from package: dist

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