rsvg-view: 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/rsvg-view - from package: librsvg2

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

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