Pattern below allows for a bash script to be called via, say, cron and check to see if it is already running.
Useful for things like rsync tasks.
PIDFILE=/var/run/myscriptname.pid
if [ -f $PIDFILE ]
then
PID=$(cat $PIDFILE)
Nguyen The Tuyen nttuyen
nttuyen
/ bash-pid.md
Created
April 30, 2019 04:49
— forked from darth-veitcher/bash-pid.md
Bash Script PID file locking
nttuyen
/ Effective_Engineer.md
Created
May 4, 2024 08:19
— forked from rondy/Effective_Engineer.md
FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.
- By Edmond Lau
- Highly Recommended 👍
- http://www.theeffectiveengineer.com/
nttuyen
/ System Design.md
Created
May 4, 2024 08:51
— forked from vasanthk/System Design.md
System Design Cheatsheet
Picking the right architecture = Picking the right battles + Managing trade-offs
- Clarify and agree on the scope of the system
- User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?
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