sync_srvsearch: 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/sync_srvsearch - from package: libruli-bin

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