sed stands for stream editor.
This is the most common way of my sed usage:
echo [SOMETHING] | sed 's/old/NEW/g'
Based on that, I have this tcsh alias1 to get timestamps that I use to append to quick tar backups.
alias gettimestamp 'date | tr " :" "__" | sed '"'"'s/_[0-9]*_EDT.*//g'"'"''
Learn about sed from here.
- Note how single quotes are escaped inside single-quoted alias definitions in tcsh. [return]