back to labs
Awk: Built-in Variable NR
MediumSed & Awk5-10 minThe brief
Number every line of /root/work/notes.txt into /root/work/out.txt.
Each output line must be the line's number, then a colon and a space, then the original line unchanged — so the first becomes '1: ...' and the second '2: ...'.
Grading compares against that exact numbering.
What you'll do
- Prefix each line with its line number, a colon and a space
- Save the numbered lines to /root/work/out.txt
Hands-on lab: you work on a real Linux box in your browser, graded on the machine's actual state.