ps2eps: 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/ps2eps - from package: ps2eps

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

On Debian possible default full paths are:

/usr/bin/ps2eps - from package: ps2eps

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

Error in other languages:
ps2eps: bevel nie gevind nie
ps2eps: comandă negăsită
ps2eps: comando não encontrado
ps2eps: commande introuvable
ps2eps: command not found
ps2eps: käsku ei ole
ps2eps: không tìm thấy lệnh
ps2eps: komanda nerasta
ps2eps: Kommando nicht gefunden.
ps2eps: kommandot finns inte
ps2eps: komut yok
ps2eps: nie znaleziono polecenia
ps2eps: níor aimsíodh an t-ordú
ps2eps: no se encontró la orden
ps2eps: no s'ha trobat l'ordre
ps2eps: opdracht niet gevonden
ps2eps: parancs nem található
ps2eps: perintah tidak ditemukan
ps2eps: príkaz nenájdený
ps2eps: příkaz nenalezen
ps2eps: команда не найдена
ps2eps: командата не е открита
ps2eps: 命令找不到
ps2eps: コマンドが見つかりません