savetextmode: command not found

Have You tried accessing the binary with the full path?

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/savetextmode - from package: svgalib

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