Print the contents of a file from a given regular expression to another

sed -n '/start/,/end/ p' file

This will print the contents of the ‘file’ from the line that matches /start/ until the line that matches /end/

View from 1th to 5th line

sed -n '1,5p;5q' example.txt

Remove empty characters at the end of each row

sed -e 's/ *$//' file.txt

Use this command if you want to know your command usage stats in the fish shell.

grep -v "^\#" ".config/fish/fish_history"|awk '{print $1}'|sort|uniq -c|sort -rn|head -n10

View only lines that contain the word “string”

sed -n '/string/p'

Remove comments and blank lines from example.pl

sed '/ *#/d; /^$/d' example.pl

This command shows a graphical representation of the current sub-directories.

ls -R | grep ":$" | sed -e 's/:$//' -e 's/[^-][^\/]*\//--/g' -e 's/^/   /' -e 's/-/|/'mand

Original Article

Remove empty lines from a file using sed

sed '/^$/d' file.txt

Original Article

Get the external IP of your system - useful if you have a dynamic ip…

curl -s checkip.dyndns.org|sed -e 's/.*Current IP Address: //' -e 's/<.*$//'

Add a \n after every line in a file using the sed command…

sed G