charge: 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/bin/charge - from package: emboss

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