clipbrowse: 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/clipbrowse - from package: perl-Clipboard

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

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