cphasematch: 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/cphasematch - from package: clipper

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

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