== snap prompt grid=180x13 cursor=179,3
|Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
|   New Tty Find Grep Joincol Delcol
|   /tmp/pardes-snap/pipe/cwd/pipe.txt Save Tty Collapse Del
|                                                                                                                                                                        |tr a-z A-Z
|     1 alpha beta
|     2 gamma delta
== snap filtered grid=180x13 cursor=17,3
|2:    /tmp/pardes-snap/pipe/cwd/pipe.txt * Save Tty Collapse Del
|3:      1 ALPHA BETA
|4:      2 gamma delta
|5:
== snap undone grid=180x13 cursor=17,3
|3:      1 alpha beta