glyph_help: 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/bin/glyph_help - from package: libbio-graphics-perl

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

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