signals and traps in shell scripting | trap command | ctrl + C on a shell script | trap handlers

Hello guys , this video is about learning signals and traps in shell scripting . Traps are used to define custom tasks to be executed when a particular signal is sent to shell script process.
I started with explaining the meaning of signals and the usage of trap command in linux . After that , I showed some examples to send signal to a shell script process and examples to define custom task using trap when a signal is sent to a shell script process. Then, I provided multiple examples on the flow of execution when traps are used in shell scripting . I also discussed about multiple traps and overwriting traps in shell scripting. At end , I elaborated what happens when ctrl + C or Ctrl + Z is send to running shell script.
Topics covered in this video are :-
- what is signal in a process
- what are traps in shell scripting
- how to use traps in shell scripting
- signals and trap in shell scripting
- overwriting traps in shell scripting
- creating SIGINT and SIGTERM signal trap
- trap for multiple signals in shell scripting
- flow of shell script when traps are used
- ctrl + c to a running shell script
- ctrl + z to a running shell script
- signals and traps in detail
#signals #traps #shell #scripting #linux
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