cshost: 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/cshost - from package: Canna

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

On Debian possible default full paths are:

/usr/bin/cshost - from package: canna-utils

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

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