Run history command under strace

sanjayagnani · 04-03-2016, 05:45 AM

Need to know which sytem call being made for history command .

need to do (strace history)

syg00 · 04-03-2016, 06:01 AM

And ???.

sanjayagnani · 04-03-2016, 06:10 AM

Hey Basically i need to know which system calls are used when an history command is executed

Example : If i use "strace ping" in terminal i get the system calls used in ping command , similarly need to run "strace history"

Habitual · 04-03-2016, 06:50 AM

Sounds like the wrong tool for the job.
I smell an XYZ Problem.

jpollard · 04-03-2016, 08:22 AM

history is built into the shell.

And it uses the read system call (and seek). For details look at the bash shell source.

Much easier than trying to reverse engineer what is going on.