scim-config-agent: 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/scim-config-agent - from package: scim

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