fixps: 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/fixps - from package: a2ps

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

On Debian possible default full paths are:

/usr/bin/fixps - from package: a2ps

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

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