Echo with out Newline Character in Bash

When working with bash scripts, it’s possible you’ll discover the necessity to print textual content to the console and not using a newline character on the finish. By default, the echo command in bash appends a newline character on the finish of the output. This may occasionally not all the time be fascinating, significantly if it’s worthwhile to format the output in a particular approach. Happily, there are a number of methods to make use of echo and not using a newline character in bash however this text will cowl three totally different strategies.

1: The best way to Use echo with out New Line Character Utilizing the -n Possibility

Essentially the most easy approach to make use of echo and not using a newline character is to make use of the -n choice. Right here’s an instance:

The -n choice will stop echo from add a newline character on the finish of the output and this may produce the next output:

2: The best way to Use echo with out New Line Character Utilizing the -e Possibility with Escape Sequences

The -e choice permits the interpretation of escape sequences, which can be utilized to provide output and not using a newline character. Right here’s an instance:

The c escape sequence tells echo to suppress the newline character. It will produce the next output and be aware that the -e choice is required to allow escape sequence interpretation:

3: The best way to Use echo with out New Line Character Utilizing a Mixture of echo and tr Instructions

One other technique to take away the newline character is to make use of the tr command to delete it. Right here’s an instance:

The tr command is used to delete the newline character (n) from the output of echo. It will produce the next output:

The primary “echo” command is modified to make use of the “-n” choice, which prevents the command from including a trailing newline character. Which means that the immediate for the person’s title might be printed on the identical line because the “Please enter your title:” textual content.

The second “echo” command is modified to incorporate the person’s title within the output utilizing variable enlargement (i.e. “$title”). The “-n” choice can also be used to forestall the command from including a trailing newline character. The ultimate “echo” command is left unchanged, because it merely prints a clean line to the terminal

Conclusion

These are among the methods to make use of echo and not using a newline character in bash; nonetheless, every technique has its personal benefits and drawbacks, so it’s best to select the one that most closely fits your desire. Utilizing the -n choice with echo is the only and most used technique, however the different strategies present further flexibility for extra complicated eventualities.