======Sed======
=====Delete Line in File=====
To delete line 7 of test.txt
<code>sed -i 7d test.txt</code>
===== Delete Line with Text =====
<code>sed '/^WHOLELINEOFTEXT$/d' input.txt > output.txt</code>
=====Append to All Lines=====
To add text to the end of each line in the file test.txt and put the result into test2.txt
<code>sed 's/$/newtexttoaddon/g' test.txt > test2.txt</code>
=====To Prepend to All Lines=====
To add text to the start of each line in the file test.txt and put the result into test2.txt
<code>sed 's/^./newtexttoaddon/g' test.txt > test2.txt</code>