worklog: 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/worklog - from package: worklog

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

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