@avinav369 you can use https://github.com/projectdiscovery/pdtm to install / update tools from projectdiscovery

Most likely this is an issue with environment variable. When I'm lazy I do this:

1. Run the command find / -name chaos 2>/dev/null
2. It will return a path like /go/bin/chaos, I copy /go/bin
3. edit the file located at /home/myusername/.bashrc
4. add export PATH=$PATH:/go/bin in the last new line
   remember I got /go/bin in step 2
5. save the file and exit
6. open a new terminal and run chaos (it works like magic)
   sorry if it's hard to follow

You have a naming conflict - there's another package called chaos on some systems (a mathematical chaos visualization tool).

Solution - Install to a different path or rename:

1. Use full path:

go install github.com/projectdiscovery/chaos-client/cmd/chaos@latest
# Then run with full path:
~/go/bin/chaos -h

2. Create an alias:

alias pd-chaos="$HOME/go/bin/chaos"
# Add to ~/.bashrc or ~/.zshrc

3. Check which chaos is running:

which chaos
# Shows: /usr/bin/chaos (system chaos)

type chaos
# Might show an alias

4. Priority fix - Add Go bin first in PATH:

# Add to ~/.bashrc or ~/.zshrc
export PATH="$HOME/go/bin:$PATH"

Then source ~/.bashrc and try again.

5. Remove conflicting package:

# If you installed via apt/dnf
sudo apt remove chaos
# or
sudo dnf remove chaos

Verify correct binary:

~/go/bin/chaos -version
# Should show: chaos version X.X.X

The ProjectDiscovery chaos client will work once the Go bin directory takes precedence in your PATH.

You have a naming conflict - there's another package called chaos on some systems (a mathematical chaos visualization tool).

Solution - Install to a different path or rename:

1. Use full path:

go install github.com/projectdiscovery/chaos-client/cmd/chaos@latest
# Then run with full path:
~/go/bin/chaos -h

2. Create an alias:

alias pd-chaos="$HOME/go/bin/chaos"
# Add to ~/.bashrc or ~/.zshrc

3. Check which chaos is running:

which chaos
# Shows: /usr/bin/chaos (system chaos)

type chaos
# Might show an alias

4. Priority fix - Add Go bin first in PATH:

# Add to ~/.bashrc or ~/.zshrc
export PATH="$HOME/go/bin:$PATH"

Then source ~/.bashrc and try again.

5. Remove conflicting package:

# If you installed via apt/dnf
sudo apt remove chaos
# or
sudo dnf remove chaos

Verify correct binary:

~/go/bin/chaos -version
# Should show: chaos version X.X.X

The ProjectDiscovery chaos client will work once the Go bin directory takes precedence in your PATH.

The issue is that another package named chaos exists in some Linux package managers, and it's shadowing the ProjectDiscovery chaos-client binary.

Fix — install the correct binary:

1. Using Go (recommended):

go install -v github.com/projectdiscovery/chaos-client/cmd/chaos@latest

Make sure $GOPATH/bin (usually ~/go/bin) is in your PATH:

export PATH=$PATH:$(go env GOPATH)/bin

2. Using pdtm (ProjectDiscovery Tool Manager):

go install -v github.com/projectdiscovery/pdtm/cmd/pdtm@latest
pdtm -install chaos-client

3. Direct download:

# Linux amd64
curl -sL https://github.com/projectdiscovery/chaos-client/releases/latest/download/chaos-client_linux_amd64.zip -o chaos.zip
unzip chaos.zip
sudo mv chaos /usr/local/bin/chaos

4. Check which chaos is being called:

which chaos
# If it shows /usr/bin/chaos or similar system path, the wrong one is first in PATH

# Fix by putting Go bin first
export PATH=$(go env GOPATH)/bin:$PATH

5. If the system chaos package was installed via apt:

sudo apt remove chaos  # Remove the conflicting package

Then verify:

chaos -version
# Should show: chaos-client version x.x.x

The key issue is PATH priority — make sure ~/go/bin comes before /usr/bin in your PATH.