DSSSB TGT CS 2023 Shift 2 – Question 136

Which of the following Linux commands is/are used to search content from files?
Commands:
i) grep
ii) egrep
iii) fgrep
iv) find
v) tail
vi) tr

• i, ii and iii only
• ii, iii and iv only
• v and vi only
• iv only

Evaluation of the Linux commands:
– **grep** (Global Regular Expression Print): Searches files for lines matching a pattern or regular expression.
– **egrep** (Extended grep): Searches files using extended regular expressions (equivalent to `grep -E`).
– **fgrep** (Fixed grep): Searches files for fixed literal strings without regex interpretation (equivalent to `grep -F`).
– **find**: Searches the filesystem for *files and directories* matching given criteria (name, size, type), not file contents.
– **tail**: Displays the last part of files.
– **tr**: Translates or deletes characters from standard input.

Hence, only **i, ii and iii** are used to search content inside files.