otf2-snapshots: 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/otf2-snapshots - from package: otf2

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

Error in other languages:
otf2-snapshots: bevel nie gevind nie
otf2-snapshots: comandă negăsită
otf2-snapshots: comando não encontrado
otf2-snapshots: commande introuvable
otf2-snapshots: command not found
otf2-snapshots: käsku ei ole
otf2-snapshots: không tìm thấy lệnh
otf2-snapshots: komanda nerasta
otf2-snapshots: Kommando nicht gefunden.
otf2-snapshots: kommandot finns inte
otf2-snapshots: komut yok
otf2-snapshots: nie znaleziono polecenia
otf2-snapshots: níor aimsíodh an t-ordú
otf2-snapshots: no se encontró la orden
otf2-snapshots: no s'ha trobat l'ordre
otf2-snapshots: opdracht niet gevonden
otf2-snapshots: parancs nem található
otf2-snapshots: perintah tidak ditemukan
otf2-snapshots: príkaz nenájdený
otf2-snapshots: příkaz nenalezen
otf2-snapshots: команда не найдена
otf2-snapshots: командата не е открита
otf2-snapshots: 命令找不到
otf2-snapshots: コマンドが見つかりません