jenkins-jobs: 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 Debian possible default full paths are:

/usr/bin/jenkins-jobs - from package: jenkins-job-builder

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

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