Promt in Terminal

Ab humne GUI, CLI, aur commands ke baare mein kaafi achhe se jaan liya hai. Ab baari hai ye jaanne ki prompt kya hota hai.

What is a command prompt?

A command prompt is the input field in a text-based user interface screen for an operating system (OS) or program. The prompt is designed to elicit an action. The command prompt consists of a brief text string followed by a blinking cursor, which is where the user types command prompt commands. This is copied from. Jab hum koi bhi terminal open karte hain, jaise Start button par click karke PowerShell open karte hain, to aapko waha ek PS likha hua milega, jaise ye:

PS C:\Users\heyashu>

Aapko pata hai ye PS kya hota hai? PS ka full form hota hai Prompt String. PS ko nahi, but C:\Users\heyashu> isse Prompt kehte hain. PS ka matlab Prompt String hai.

Ab aao, jaante hain prompt ko kaise customize karein?

Dekho, Bash mein PS1 aur PS2 naam se variables hote hain. To chalo, print karke dekhte hain. Kaise print karenge? Using $.

Ashutosh Tiwari@DESKTOP-NCVPMH3 MINGW64 ~/Desktop/Me/node-js-by-procodrr
$ echo $PS1
\[\]\[\033]0;$TITLEPREFIX:$PWD\007\]\n\[\033[32m\]\u@\h \[\033[35m\]$MSYSTEM \[\033[33m\]\w\[\033[36m\]`__git_ps1`\[\033[0m\]\n$ \[\]

to ps1 ke andar wo stored ahi badi si string, ab isko hum rename ekr sate hain kaise??

Ashutosh Tiwari@DESKTOP-NCVPMH3 MINGW64 ~/Desktop/Me/node-js-by-procodrr
$ PS1=ashu
ashu
ashu
ashu

// ab upar wali string badal ke ashu ho gyi. lekin ye permanant nahi fix hua 
// bad me permanant krenge modify isko

Configure Terminal

To agar hume PS1 aur PS2 ko permanently change karna hai, to aaye dekhte hain kaise possible hoga.

Ek file hoti hai home directory ke andar. Achha, aapko kaise pata chalega home directory kya hai? To aap terminal mein jaayein aur likhiye:

~ explorer .
// enter kriye aur aapka home directory fataak se file explorere me khul jayegi
// note: agar aap linux pe hai to ./ use karye after explorer

to ab folder open hua ab agar .bashrc file na ho waha to aapko banani padegi aise, ya fir normally

Ashutosh Tiwari@DESKTOP-NCVPMH3 MINGW64 ~
$ touch .bashrc

ab file create ho jayegi..

ab us .bashrc ko vs code ya kisi editor me open kr lijiye, ab iss bash rc me jo bhi likh denge aap wo har naye terminal pe run hoga , ab aap likh dijiye .bashrc me

//.bashrc
echo "heyyyy"
PS1='hello=> '

ab har bar naye terminal me mere hello print hoga

// in terminal
heyyyy
hello=> 

Alias

Iska use tab hota hai jab aapko koi bahut badi command baar-baar likhni padti ho, to aap usko ek naam de sakte ho. Jaise, git add . aur aap nahi chahte baar-baar ye command likho, to iska ek upnaam (alias) de do, jaise mera naam Ashutosh hai aur aap mujhe Ashu bula sakte ho waise. Ab aapko .bashrc file mein likhna hoga.

To chalo, sabse pehle .bashrc ko source karte hain aur run karte hain.

// in terminal
source ~./.bashrc

ab jaise maine bashrc me likh diya hai

// .bashrc
alias hey='echo 1233445'

ab jaise aapne source ~/.bashrc kiya to wo file run kr jayegi aur saara content print ho jayega, ab jaise aap hey likhge 1233445 print ho jayega

Ashutosh Tiwari@DESKTOP-NCVPMH3 MINGW64 ~/Desktop/ME/node-js-by-procodrr
$ hey
1233445

aise aap git ki commnds ko bhi customize kr sakte ho, aurr bahut kuchh, ab dekho aise aap bahut customize kr sakte ho,. kuchh error aaye mujhe contact kro ya fi google kariye, Dhanywaad