sed

Using named blocks to delete text

cat << EOF > text
Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Ut eu metus id lectus vestibulum ultrices. Maecenas rhoncus.
EOF

sed 's/^.*\(consectetuer.*elit\).*$/\1/' text

consectetuer adipiscing elit

s/^.* - substitute starting at the beginning of the line (^) followed by anything (.*) up to...
\( - start a named block
consectetuer.*elit\. - match the first word, everything (.*) up to the last word (in this case, including the trailing (escaped)dot) you want to match
\) - end the named block
match everything else (.*) to the end of the line ($)
/ - end the substitute find section
\1 - replace with the name block between the $ and the $ above
/ - end the replace

Quick reference

Command	Description
`sed '/^$/d'`	Remove blank lines
`sed '/^ /d'`	Remove lines starting with two spaces
`sed 's/^textToRemove//g'`	Remove text
`echo "text::to::remove [TECAN,Text to Keep]" \| sed "s/text::to::remove \[TECAN,//" \| sed "s/\]//"`	Remove text
`find . -type f -exec sed -i -e 's/apple/orange/g' {} \;`	Find and replace all text in current directory and subdirectories