t

https://github.com/sferik/t

A command-line power tool for Twitter.

Dan Nguyen gives a really cool example of using it to find something that was on the tip of his tongue:

t timeline dancow --csv -n 3200 > dantweets.csv
cat dantweets.csv | xsv sort -s 'Posted at' | xsv select ID,Text | 
  xsv search '^RT' | rg '\bai\b'