snappuller-enable: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

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 Debian possible default full paths are:

/usr/share/solr/bin/snappuller-enable - from package: solr-common

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