charmap: 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/charmap - from package: gucharmap

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

On Debian possible default full paths are:

/usr/bin/charmap - from package: charmap.app
/usr/bin/charmap - from package: gucharmap

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

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