clfmerge: 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/clfmerge - from package: logtools

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

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