pick is a more powerful alternative to head/tail/cat/tac/... to pick lines from a text file.
Python-like list-subscription expression, but 1-based!
cat ... | pick 1 # pick the first line
cat ... | pick -1 # pick the last line
cat ... | pick : # pick all lines
cat ... | pick :: # pick all lines
cat ... | pick 2: # pick all lines except the first line
cat ... | pick :-1 # pick all lines except the last line
cat ... | pick ::-1 # pick all lines (in reverse order)
cat ... | pick 3:1:-1 # pick the first 3 lines (in reverse order)
cat ... | pick ::2 # pick every other line
... (and more)
Dash-split range expression:
cat ... | pick 1-3 # pick the first 3 lines
cat ... | pick 5-10 # pick the 5th to 10th lines
cat ... | pick 10-1 # pick the 10th to 1st lines (in reverse order)
Comma-split mixed expression:
cat ... | pick 1,3::,5-7 # pick the 1st, then all except the first two, then the 5th to 7th lines
MIT License.