Showing posts with label script. Show all posts
Showing posts with label script. Show all posts

Thursday, January 20, 2022

WinSCP and Task Scheduler Automation in Windows server; Scripts

 https://docs.google.com/document/d/1qpyuGJ5-VE-z4BJCVQZ73NOB3IEk7j6b/edit?usp=sharing&ouid=108428966501894711148&rtpof=true&sd=true



Move files from one server location to another with batch script. Windows PC.

Tuesday, May 21, 2019

Give permission to execute Shell Script ; UNIX

chmod 0755 TestBash.sh






TestBash.sh contents are here
---------------
#!/bin/sh
java HelloWorld
result=$?
echo $result


Gets result from java to shell script----->https://www.chrisnewland.com/java-return-code-in-linux-shell-script-122

if  an error -  bad interpreter: No such file or directory


use below - 

$ sed -i -e 's/\r$//' TestBash.sh &

Friday, October 20, 2017

How to create Cron jobs UNIX/LINUX

$crontab -l
//shows/prints existing cronjob

$crontab -e
//create a cronjob

$crontab -r 
//removes all cronjobs



below code writes test********** to testCronLog file every 1 min


  • */1 * * * * echo "test***********" >>/home/app/testCronLog
--below runs every 3 mins and prints output to appLog file
  • */3 * * * * /home/app/startProcess.sh >>/home/app/appLog




Actually, it's not recommended to handle those files by hand. Per crontab man page:
Each user can have their own crontab, and though
these are files in /var/spool/cron/crontabs, they are not
intended to be edited directly.
Files under /var/spool are considered temporary/working, that's why they probably get deleted during an upgrade, though a closer look at the cron package's upgrade scripts may shed some light on this.
Anyway, it's always a good practice to back up your cron entries or keep them in a file in your home directory.
I assume you're using crontab -e to create crontab files on the fly. If so, you can get a "copy" of your crontab file by doing crontab -l. Pipe that to a file to get a "backup":
crontab -l > my-crontab
Then you can edit that my-crontab file to add or modify entries, and then "install" it by giving it to crontab:
crontab my-crontab
This does the same syntax checking as crontab -e.



Reference:
https://docs.oracle.com/cd/E23824_01/html/821-1451/sysrescron-24589.html
https://www.taniarascia.com/setting-up-a-basic-cron-job-in-linux/
https://askubuntu.com/questions/216692/where-is-the-user-crontab-stored
https://kb.iu.edu/d/afiz