snapshooter: 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/snapshooter - from package: solr-common

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