Web16 Nov 2024 · The code does not stop after deleting lines at the first match, it is able to delete more than one pack of lines. If matching packs of four lines overlap then not all of them will be deleted. E.g. this snippet: foo bar # this is a test host = example.com private = 192.168.1.1 # overlapping host = example.edu private = 192.168.1.1 # end of test Web5 May 2024 · 1. sed append command. 2. sed appends a new line before a specific line number. 3. sed appends a new line after a specific line number. 4. sed appends new lines before the lines that match the regular pattern. 5. sed appends new lines after the lines that match the regular pattern. 6. sed append new line to end of file.
regex - Append line after last match with sed - Stack Overflow
Web28 Dec 2024 · Using the sed Command. First, let’s revisit the sed one-liner that we’ve solved the “print the next line after each match” problem: sed -n '/pattern/ { n; p }' input. The core … Web19 Jun 2016 · sed -e "$ (grep -n 'thing4' file tail -1 cut -f1 -d':')a foo" file Use the shell and grep to obtain the last line number that contains the pattern, then use that number as the … kitleys ecomersh
Sed: Adding new line after matching pattern - UNIX
Web10 Dec 2012 · Sed: Adding new line after matching pattern Hi I just wanted to add a new line after every matching pattern: The method doing this doesn't matter, however, I have been … Web16 Jun 2011 · Print N lines after matching lines You can use grep with -A n option to print N lines after matching lines. For example: $ cat mytext.txt Line1 Line2 Line3 Line4 Line5 Line6 Line7 Line8 Line9 Line10 $ grep -wns Line5 mytext.txt -A 2 5:Line5 6-Line6 7-Line7 Other related options: Print N lines before matching lines Web7 Nov 2012 · 1 Change your sed command as follows: sed -n "\:$var: {n;p;}" Two points: The best you could have hoped for with your version is to search for “ $var ”. To search for “ /somePath/to/my/home ”, you must replace your single quotes ( ') with double quotes ( ") to allow “ $var ” to be replaced by “ /somePath/to/my/home ”. mage the ascension hollow ones