Steps to Install Strace Process Monitoring Tool on Ubuntu 20.04 LTS

Strace is a free & open source process monitoring tool for linux system. It helps in troubleshooting issues, & used for Debugging, Intercept System calls, Record system calls, & Signals received by a process, & Trace running processes purposes.

There are few steps to install Strace on ubuntu:

Step 1: Update the System.

apt-get update

Step 2: Install the Strace on system.

apt install strace

• Check the Strace version.

strace -V

• Here is the command output.

Step 3: Strace Syntax & Examples:

• Get the system call,argument & result of the call.

strace ls

• Here is the command output.

• Run the following command for Count number of system calls.

strace -c ls

• Here is the command output.

• Trace specific system calls.

strace -e trace=write ls

• Here is the command output.

strace -e trace=read ls

• Here is the command output.

• Trace network related system calls.

strace -e trace=network nc -v -n 127.0.0.1 22

• Here is the command output.

• Trace signal related system calls.

strace -e trace=signal nc -v -n 127.0.0.1 22

• Here is the command output.

• Print timestamp of each call.

strace -r ls

• Here is the command output.

• Display time spent on system calls.

strace -T ls

• Here is the command output.

• Display wall clock time of each system call.

strace -t ls

• Here is the command output.

• Display instruction pointer..

strace -i ls

• Here is the command output.

• To Store output to a file.

strace -o output.txt ls

• Here is the command output.