synfigstudio: 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/synfigstudio - from package: synfigstudio

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

On Debian possible default full paths are:

/usr/bin/synfigstudio - from package: synfigstudio

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

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