cphasecombine: 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 CentOS possible default full paths are:

/usr/bin/cphasecombine - from package: clipper

You may install the required package with command yum install {package}

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