tipc-pipe: 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/tipc-pipe - from package: tipcutils

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

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