


Why is ./ automatically inserted in front of the program name when typing a command to run a program?
When running a program using the command line, you may notice that the two characters "./" are automatically inserted in front of the program name. This is because in Unix and Linux systems, "./" represents the current directory. When you type a command to run a program, the system will first look for the program's executable file in the current directory. If you do not add "./", the system will think that you want to run the command that comes with the system or the program in the path specified by the environment variable PATH. Therefore, in order to ensure that the program in the current directory is run, we need to add "./" before the program name. This is a system default behavior that ensures command line security and consistency.
Question content
For example,
package main import ( "fmt" "net/http" ) func hello(res http.ResponseWriter, req *http.Request) { fmt.Fprint(res, "Hello, my name is Inigo Montoya") } func main() { http.HandleFunc("/", hello) http.ListenAndServe("localhost:4000", nil) }
When entering a command, why not automatically convert inigo
to ./inigo
?
Solution
You need
./inigo
Because .
is not and should not be in your path
. .
just refers to the current directory.
Assuming you are using bash
, as the question tag indicates, this alternative
$pwd/inigo
also works like any other relative or absolute path to inigo
.
edit
Alternatively, you can add $pwd
to your path
, which has the advantage of not requiring you to type any of the above and not causing the addition of .
security risks.
Assuming you are in a directory containing inigo
, then
path+=:$pwd
Then just enter
inigo
From anywhere.
The above is the detailed content of Why is ./ automatically inserted in front of the program name when typing a command to run a program?. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



OpenSSL, as an open source library widely used in secure communications, provides encryption algorithms, keys and certificate management functions. However, there are some known security vulnerabilities in its historical version, some of which are extremely harmful. This article will focus on common vulnerabilities and response measures for OpenSSL in Debian systems. DebianOpenSSL known vulnerabilities: OpenSSL has experienced several serious vulnerabilities, such as: Heart Bleeding Vulnerability (CVE-2014-0160): This vulnerability affects OpenSSL 1.0.1 to 1.0.1f and 1.0.2 to 1.0.2 beta versions. An attacker can use this vulnerability to unauthorized read sensitive information on the server, including encryption keys, etc.

The article explains how to use the pprof tool for analyzing Go performance, including enabling profiling, collecting data, and identifying common bottlenecks like CPU and memory issues.Character count: 159

The article discusses writing unit tests in Go, covering best practices, mocking techniques, and tools for efficient test management.

Queue threading problem in Go crawler Colly explores the problem of using the Colly crawler library in Go language, developers often encounter problems with threads and request queues. �...

The library used for floating-point number operation in Go language introduces how to ensure the accuracy is...

This article introduces a variety of methods and tools to monitor PostgreSQL databases under the Debian system, helping you to fully grasp database performance monitoring. 1. Use PostgreSQL to build-in monitoring view PostgreSQL itself provides multiple views for monitoring database activities: pg_stat_activity: displays database activities in real time, including connections, queries, transactions and other information. pg_stat_replication: Monitors replication status, especially suitable for stream replication clusters. pg_stat_database: Provides database statistics, such as database size, transaction commit/rollback times and other key indicators. 2. Use log analysis tool pgBadg

The article discusses the go fmt command in Go programming, which formats code to adhere to official style guidelines. It highlights the importance of go fmt for maintaining code consistency, readability, and reducing style debates. Best practices fo

Backend learning path: The exploration journey from front-end to back-end As a back-end beginner who transforms from front-end development, you already have the foundation of nodejs,...
