kalarmautostart: 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/kalarmautostart - from package: kdepim

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

On Debian possible default full paths are:

/usr/bin/kalarmautostart - from package: kalarm

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

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