system-and-network-administration-course/week7/lab7-solution.org

#+title: Lab7 Solution
#+title: Amirlan Sharipov (BS21-CS-01)
#+author: Amirlan Sharipov (BS21-CS-01)
#+PROPERTY: header-args :results verbatim :exports both
#+OPTIONS: ^:nil

* Question 1
** Cron job
0 0 */5 * *		/home/rinri/edu/sna/backup.sh

#+begin_src bash
cat backup.sh
#+end_src

#+RESULTS:
: FNAME="$(date '+/home/rinri/edu/sna/funny-dir_%b_%d_%Y_%H_%M_%S.tar.gz')"
: tar caf "$FNAME" /home/rinri/edu/sna/funny-dir

** Anacron
1 	10	backup-anacron /home/rinri/edu/sna/backup-anacron.sh

#+begin_src bash
cat backup-anacron.sh
#+end_src

#+RESULTS:
: #!/bin/bash
: rm /home/rinri/edu/sna/funny-dir_*
: FNAME="$(date '+/home/rinri/edu/sna/funny-dir_%b_%d_%Y_%H_%M_%S.tar.gz')"
: tar caf "$FNAME" /home/rinri/edu/sna/funny-dir

* Question 2
** Cron job
0 0 * * 0   /home/rinri/edu/sna/backup-nginx.sh

#+begin_src bash
cat backup-nginx.sh
#+end_src

#+RESULTS:
: #!/bin/bash
: rm /home/rinri/edu/sna/nginx-www_*
: FNAME="$(date '+/home/rinri/edu/sna/nginx-www_%b_%d_%Y_%H_%M_%S.tar.gz')"
: tar caf "$FNAME" /var/www/

* Question 3
5 * * * *		/home/rinri/edu/sna/log-info.sh "5 minutes after midnight everyday"

0 10 * * 1-5	/home/rinri/edu/sna/log-info.sh "10:00 on weekdays"

0 4 * * 1	/home/rinri/edu/sna/log-info.sh "4:00 on Monday"

0 0 8-14 * 6    /home/rinri/edu/sna/log-info.sh "second saturday of the month"

#+begin_src bash
cat log-info.sh
#+end_src

#+RESULTS:
: #!/bin/bash
: echo "$(date '+%d-%m-%y %H:%M:%S') $1" >> /var/log/sna_cron.log