ibmsquit: 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/ibmsquit - from package: ibutils

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

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