gifinto: 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/gifinto - from package: giflib-utils

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

On Debian possible default full paths are:

/usr/bin/gifinto - from package: giflib-tools

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

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