[PDF] bash script echo

'echo' is one of the most used commands to print text or string data into the terminal or another command as input or a file. This command has some options that  Autres questions
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  • What is echo in bash script?

    The echo command is used to display a line of text that is passed in as an argument.
    This is a bash command that is mostly used in shell scripts to output status to the screen or to a file.

  • How to make echo in shell script?

    $: $ sign is used in the shell to retrieve the value of variables. echo: echo command is used to print the text or string to the shell or output file.
    Here we initialized a variable name “h” and 5 to it, and then we used the echo command to print the value using $ sign in single quotes.

  • What is echo $1 in bash?

    Any words put on the command line of a shell script are available to the script as numbered variables: # simple shell script echo $1. The script will echo the first parameter supplied on the command line when it is invoked.

  • What is echo $1 in bash?

    Now, using the echo command we can simply display its value on the terminal as follows:

    1$ var_a=100. $ echo $var_a.2$ var_b="bash programming echo variable" $ echo $var_b.3$ var_A="hellofriends" $ var_B=50. $ echo $var_A $var_B.4$ var1=$(date) $ var2=$(hostname) $ echo "the date is $var1 @ computer name is $var2"

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