install-sgmlcatalog: 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 Debian possible default full paths are:

/usr/sbin/install-sgmlcatalog - from package: sgml-base

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

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