Bash How to Assign Output to a Variable?

1. How do you put the output of a command into a variable bash?
2. How do you assign a command output to a variable?
3. How do you write a curl output to a variable?
4. How assign grep output to variable in shell script?
5. What is the output of who command?
6. How do you set a variable in bash?

How do you put the output of a command into a variable bash?

Bash Assign Output of Shell Command To And Store To a Variable

1. var=$(command-name-here) var=$(command-name-here arg1) var=$(/path/to/command) var=$(/path/to/command arg1 arg2) ...
2. var=`command-name-here` var=`command-name-here arg1` var=`/path/to/command` var=`/path/to/command arg1 arg2`

How do you assign a command output to a variable?

To store the output of a command in a variable, you can use the shell command substitution feature in the forms below: variable_name=$(command) variable_name=$(command [option ...] arg1 arg2 ...) OR variable_name='command' variable_name='command [option ...] arg1 arg2 ...'

How do you write a curl output to a variable?

Simply, Import json and sys packages to load the json object, then print from the result object any property you need: curl ipinfo.io/"8.8. 8.8" 2>/dev/null | python -c 'import json,sys; result=json. load(sys.

How assign grep output to variable in shell script?

The syntax is:

1. VAR=`command-name` VAR="`grep word /path/to/file`" ## or ## VAR=$(command-name) VAR="$(grep word /path/to/file)" ...
2. echo "Today is $(date)" ## or ## echo "Today is `date`" ...
3. todays=$(date) ...
4. echo "$todays" ...
5. myuser="$(grep '^vivek' /etc/passwd)" echo "$myuser"

What is the output of who command?

The basic syntax for using who command is as follows. 1. If you run who command without any arguments, it will display account information (user login name, user's terminal, time of login as well as the host the user is logged in from) on your system similar to the one shown in the following output.

How do you set a variable in bash?

To create a variable, you just provide a name and value for it. Your variable names should be descriptive and remind you of the value they hold. A variable name cannot start with a number, nor can it contain spaces. It can, however, start with an underscore.