kdesvnaskpass: 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 CentOS possible default full paths are:

/usr/bin/kdesvnaskpass - from package: kdesvn

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/kdesvnaskpass - from package: kdesvn

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

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