To experiment with the idea of using structural regular expressions in a shell, I started implementing some sam commands as cli programs. I made three of them:

• e - this one opens the file for editing
  
• ca - changes the dot
  
• p - prints the contents of the dot
  

The mode of operation is by chaining them with pipes.

Here I open plan9's man(1)'s page, go to line 20 and select the whole nroff paragraph.


Here, I am searching for some random text in a lorem impsum and I want to get the whole line where the matched text is:



I will implement actual text manipulation facilities in the near future.