How to keep run chmod when system boot up

Question

#! /bin/sh


# Carry out specific functions when asked to by the system
 case "$1" in
  start)

  chmod a+rwx /var/www/html/Images/*
  echo "success"
  ;;
  stop)
  ;;
  *)
  echo "Usage: /etc/init.d/image {start|stop}"
  exit 1
  ;;
  esac

Im using run levels to run my chmod when the system is boot up but it is only run once and how can i keep allow chmod to keep running when system is boot up? Anybody can help? i'm using ubuntu 16.04.

score 2 · Answer 1 · answered Jul 14 '16 at 08:11

Don't use chmod in this way. In the long run it creates lots of pain and will turn your box into a worm pit. What you want to do there is a huge security no-go.

If you want users to be able to write to a certain location, use proper filesystem access rights. Create a new group for whoever shall be able to write to that directory, set its permissions to 1775 (owner and group rwx, others rx, sticky bit enabled) and set the directory owning group to the one created formerly. Then add all users that shall be able to write to that directory to this group.

Do you have any example on doing that? – Alvin Wee Jul 14 '16 at 08:18 — Alvin Wee, Jul 14 '16 at 08:18

score 0 · Answer 2 · answered Jul 14 '16 at 08:11

0

Why don't you use a cronjob for that? You can set up this script (just the chmod line) to be run every minute...

Ubuntu CronHowto

answered Jul 14 '16 at 08:11

centaurio

63
6

isnt Crontab also run once when system is start? – Alvin Wee Jul 14 '16 at 08:15
But is it possible if crontab to be keep running every seconds? – Alvin Wee Jul 14 '16 at 08:17
With crontab you can run a script periodically. But you should consider checking you configuration as datenwolf suggested and fix it there – centaurio Jul 14 '16 at 08:19
How i got no idea on doing that because im new to linux os. – Alvin Wee Jul 14 '16 at 08:27
How about google "apache default upload file permission" or something like that – centaurio Jul 14 '16 at 08:30

How to keep run chmod when system boot up

2 Answers2