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sysadmin

Crontab Day of the Week syntax

October 5, 2022 by Tarik

0 and 7 both stand for Sunday, you can use the one you want, so writing 0-6 or 1-7 has the same result. Also, as suggested by @Henrik, it is possible to replace numbers by shortened name of days, such as MON, THU, etc: 0 – Sun Sunday 1 – Mon Monday 2 – Tue … Read more

Categories linux Tags cron, crontab, linux, sysadmin Leave a comment

How to find out what group a given user has?

October 3, 2022 by Tarik

groups or groups user

Categories linux Tags command-line, linux, sysadmin, unix Leave a comment

How can I delete a service in Windows?

September 14, 2022 by Tarik

Use the SC command, like this (you need to be on a command prompt to execute the commands in this post): SC STOP shortservicename SC DELETE shortservicename Note: You need to run the command prompt as an administrator, not just logged in as the administrator, but also with administrative rights. If you get errors above … Read more

Categories windows-services Tags administration, sysadmin, windows-services Leave a comment

How to use SSH to run a local shell script on a remote machine?

August 29, 2022 by Tarik

If Machine A is a Windows box, you can use Plink (part of PuTTY) with the -m parameter, and it will execute the local script on the remote server. plink root@MachineB -m local_script.sh If Machine A is a Unix-based system, you can use: ssh root@MachineB ‘bash -s’ < local_script.sh You shouldn’t have to copy the … Read more

Categories shell Tags remote-execution, shell, ssh, sysadmin Leave a comment
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Tarik Billa

Software Engineer
tarikbilla@gmail.com
+8801884414000
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