46 lines
1.2 KiB
Markdown
46 lines
1.2 KiB
Markdown
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# The `echo` command
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The `echo` command lets you display the line of text/string that is passed as an argument
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### Examples:
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1. To Show the line of text or string passed as an argument:
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```
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echo Hello There
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```
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2. To show all files/folders similar to the `ls` command:
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```
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echo *
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```
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3. To save text to a file named foo.bar:
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```
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echo "Hello There" > foo.bar
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```
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4. To append text to a file named foo.bar:
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```
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echo "Hello There" >> foo.bar
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```
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### Syntax:
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```
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echo [option] [string]
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```
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#### It is usually used in shell scripts and batch files to output status text to the screen or a file.The `-e` used with it enables the interpretation of backslash escapes
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### Additional Options and their Functionalities:
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|**Option** |**Description** |
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|:---|:---|
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|`\b`|removes all the spaces in between the text|
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|`\c`|suppress trailing new line with backspace interpretor ‘-e‘ to continue without emitting new line.|
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|`\n`|creates new line from where it is used|
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|`\t`|creates horizontal tab spaces|
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|`\r`|carriage returns with backspace interpretor ‘-e‘ to have specified carriage return in output|
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|`\v`|creates vertical tab spaces|
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|`\a`|alert returns with a backspace interpretor ‘-e‘ to have sound alert|
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|`-n`|omits echoing trailing newline .|
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