List Past Commands Current Session Ptghci

List previously executed commands from the current session in ptghci.

Terminal

%past

%past

#!/bin/bash

# List Past Commands Current Session Ptghci
%past

import subprocess

# List Past Commands Current Session Ptghci
# Make sure to replace <placeholders> with actual values
def run_command():
    cmd = [
        "past",
        
    ]
    
    try:
        print(f"Executing: {' '.join(cmd)}")
        subprocess.run(cmd, check=True)
    except subprocess.CalledProcessError as e:
        print(f"Error: {e}")
    except FileNotFoundError:
        print("Error: past not found. Please install it first.")

if __name__ == "__main__":
    run_command()

When To Use

When needing to quickly reference commands executed in the current REPL session.

Pro Tip

Employ `:hist` for more detailed command history options.

Anatomy of Output

Understanding the result

Command History: 5 commands listed. History Length

Indicates the count of commands available.

1. load ModuleA First Entry

Most recent command executed.

2. putStrLn 'Hello World' Second Entry

Output to the console.

Power User Variants

Optimized versions

past -v

List past commands with verbose formatting.

past --filter 'specific'

Filter past commands by a keyword.

Troubleshooting

Common pitfalls

No commands executed in this session.

Solution: Ensure commands were inputted during the current session.

Error: Command history not initialized.

Solution: Check session settings to ensure command history is enabled.

Warning: History limit reached; old commands purged.

Solution: Increase history limit in ptghci configuration.

Command Breakdown

What each part is doing

%past: Base Command; The executable that performs this operation. Here it runs Past before the shell applies any redirect operators.

Alternative Approaches

Comparable commands in other tools

Alternative programming tools for the same job.

Flask / Show Routes For App flask routes Go / Show All Go Environment Variables go env Accelerate / Print Environment Information accelerate env Go / Show Specific Symbol Documentation go doc -all -src <encoding/json.Number> Go / List Module Dependencies And Updates go list -m -u all