Multiple choice technology operating systems

sed is a

  1. Command to check process status

  2. Command to list the files

  3. Stream editor

  4. Command to set env variables
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

sed is a Stream Editor (option C), a Unix utility for filtering and transforming text. It's not for checking process status (A - that's ps), listing files (B - that's ls), or setting environment variables (D - that's export/setenv). The name 'sed' comes from 'stream editor'.

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