How do I Create an Alias in Bash?

To create an alias in bash that is set every time you start a shell:

1. Open your ~/. bash_profile file.
2. Add a line with the alias—for example, alias lf='ls -F'
3. Save the file.
4. Quit the editor. The new alias will be set for the next shell you start.
5. Open a new Terminal window to check that the alias is set: alias.

1. How do I set an alias in bash?
2. What is a bash alias?
3. Where is bash aliases file?
4. How do I make an alias command?
5. How do you use an alias name?
6. How do I run an alias in shell script?
7. How do I permanently store my alias?
8. What does alias mean?
9. What is a script alias?
10. How do I run an alias command in Linux?
11. How do you do if in bash?
12. What does a semicolon do in an alias command?

How do I set an alias in bash?

Creating Bash Aliases

An alias declaration starts with the alias keyword followed by the alias name, an equal sign and the command you want to run when you type the alias. The command needs to be enclosed in quotes and with no spacing around the equal sign. Each alias needs to be declared on a new line.

What is a bash alias?

A Bash alias is a method of supplementing or overriding Bash commands with new ones. Bash aliases make it easy for users to customize their experience in a POSIX terminal. They are often defined in $HOME/. bashrc or $HOME/bash_aliases (which must be loaded by $HOME/. bashrc).

Where is bash aliases file?

Aliases allow you to define new commands by substituting a string for the first token of a simple command. They are typically placed in the ~/. bashrc (bash) or ~/. tcshrc (tcsh) startup files so that they are available to interactive subshells.

How do I make an alias command?

As you can see, the Linux alias syntax is very easy:

1. Start with the alias command.
2. Then type the name of the alias you want to create.
3. Then an = sign, with no spaces on either side of the =
4. Then type the command (or commands) you want your alias to execute when it is run.

How do you use an alias name?

You can rename a table or a column temporarily by giving another name known as Alias. The use of table aliases is to rename a table in a specific SQL statement. The renaming is a temporary change and the actual table name does not change in the database.

How do I run an alias in shell script?

10 Answers

1. In your shell script use the full path rather then an alias.
2. In your shell script, set a variable, different syntax petsc='/home/your_user/petsc-3.2-p6/petsc-arch/bin/mpiexec' $petsc myexecutable.
3. Use a function in your script. ...
4. Source your aliases shopt -s expand_aliases source /home/your_user/.bashrc.

How do I permanently store my alias?

Steps to create a permanent Bash alias:

1. Edit ~/. bash_aliases or ~/. bashrc file using: vi ~/. bash_aliases.
2. Append your bash alias.
3. For example append: alias update='sudo yum update'
4. Save and close the file.
5. Activate alias by typing: source ~/. bash_aliases.

What does alias mean?

(Entry 1 of 2) : otherwise called : otherwise known as —used to indicate an additional name that a person (such as a criminal) sometimes uses John Smith alias Richard Jones was identified as the suspect.

What is a script alias?

A Bash alias is essentially nothing more than a keyboard shortcut, an abbreviation, a means of avoiding typing a long command sequence. If, for example, we include alias lm="ls -l | more" in the ~/. In a script, aliases have very limited usefulness. ...

How do I run an alias command in Linux?

What you need to do is type the word alias then use the name you wish to use to execute a command followed by "=" sign and quote the command you wish to alias. You can then use "wr" shortcut to go to the webroot directory. The problem with that alias is that it will only be available for your current terminal session.

How do you do if in bash?

A Shell script usually needs to test if a command succeeds or a condition is met. In Bash, this test can be done with a Bash if statement.
...
What are the Bash Conditional Expressions?

What does a semicolon do in an alias command?

What does a semicolon do in an alias command? An alias can be used to provide a shortcut to another alias. You just studied 6 terms!