sponge: 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/sponge - from package: moreutils

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

On Debian possible default full paths are:

/usr/bin/sponge - from package: moreutils

You may install the required package with command apt-get install {package}

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