getpidcon: 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 Debian possible default full paths are:

/usr/sbin/getpidcon - from package: selinux-utils

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