Users Guide

Script Scheduler from EXEC mode

To trigger scripts to run periodically or based on an event, use the following commands.

• Schedule a script to run in EXEC mode.

Schedule a script to execute at a specic time and optionally stop after a specied time. By default, the script runs in the foreground.

To run the script in the background, use the bg parameter.

EXEC mode

script execute script-name [start {at | date-time | after time}] [stop {at date-time | after

time}] [bg] [arguments arg[..arg]] [username username]

Following example shows the script execution at 22:22 10/30/14 (MM/DD/YY) and stops after 1 hour and runs the script in the

background:

DellEMC#script execute collect_log.py start at 22:22-10/30/14 stop after 0001:0000 args "Te

0/5" bg

• Scheduled scripts can be uncongured/stopped/killed/resumed only by the congured user (test) or higher privileged user.

• In general, the Privilege level 15 (highest privilege user in Dell EMC Networking OS CLI) user can congure/recongure the explicit

username in script execute CLI.

The following example shows how you can schedule the script named sample.zsh to start after one hour and 12 minutes from now

and runs the script in the background:

DellEMC#script execute sample.zsh start 01:12 bg

• Schedule a script to run periodically.

Schedule scripts to run at a certain time, to be repeated, to stop at a specied time or by a string of arguments. This script runs in the

background.

CONFIGURATION mode

script execute script-name [start {at date-time | after time}] [stop {at date-time | after

time}] [watch] [arguments arg[..arg]] [username username]

Following example shows the script execution at 22:22 (FTOS clock time) and stops after 15 minutes:

DellEMC(conf)#script execute monitor_status.pl start at 22:22 stop after 15 watch args "Te

0/4"

Use the keyword watch to monitor the script. If the script execution terminates before 10 minutes, the system reruns the script.

• Executing a script based on event trigger.

Dene an event to trigger scripts to run by a log event (for example, SYSLOG in Dell EMC Networking OS), a time-based event, or

when CPU or memory usage reaches a predetermined percentage. The script runs in the background.

CONFIGURATION mode

script trigger-event event-name {log-event [{tag—or—ex tags | tag-and-ex tags}] [severity

severity level]} | time-event {[start {at date-time | after time}] [stop {at date-time | after

time | count number}] [interval time] [weekday day] [ month month] [monthday nday]} | cpu-

usage percentage | mem-usage percentage}

Following example shows the event to trigger a script at 22:22 and then triggers every Monday midnight and stops at 02:02–11/10/14:

DellEMC(conf)#script trigger-event Event2 time-event start at 22:22 stop at 02:02-11/10/14

weekday mon

Smart Scripting