svn_load_dirs: 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

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/svn_load_dirs - from package: subversion-tools

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