Editing Text Images (section)

==== pipes, write to & append ====
'''A pipes (" | ") sends the output of one program to the input of another program'''.

<code>echo "my sentence"| wc</code> the echoed sentence "my sentence" is ''pipped'' into the program wc which counts the number of lines, words, and characters


<code>></code> Writes the output of a command to a file, rather than to print on terminal.

<code>df > df_output.txt </code> redirect the content of <code> man dfM </code> to a file called df_output.txt

If the said file doesn't exit it will create it, if it already exists it will overwrite its contents/


<code>>></code> appends the output of a command to a file, without overwriting the original file.
<code> echo 'also add this' >> df_output.txt </code> will add 'also add this' to the contents of df_output.txt