ds-logpipe: 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/ds-logpipe - from package: 389-ds-base

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