The here string is used for input redirection from <indexentry content="<<text or a variable. Input is mentioned on the same line within single quotes ('').
The syntax is as follows:
$ command <<< 'string'
- Let's see the following example, hereString_01.sh:
#!/bin/bash wc -w <<< 'Good Morning and have a nice day !'
- Save the file, give the permission, and run the script as follows:
$ chmod u+x hereString_01.sh $ ./hereString_01.sh
- Here is the output:
In this example, the string Good Morning and have a nice day ! is called as the here string.