admesh: 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/admesh - from package: admesh

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

On Debian possible default full paths are:

/usr/bin/admesh - from package: admesh

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

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