pamsistoaglyph: 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/pamsistoaglyph - from package: netpbm-progs

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

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