chsh.ldap: 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 Debian possible default full paths are:

/usr/bin/chsh.ldap - from package: nslcd-utils

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

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