The file dump.sql.bz2 is in the current directory. Type the complete command, using no options at all, that decompresses it back to dump.sql.
LPIC-1 Exam 101-500, objective 103. GNU and Unix commands easy
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How these questions are written — where each question comes from, what the verification ledger records, and what happens when one is found wrong.
Answer
Type the answer.
Accepted answers
bunzip2 dump.sql.bz2bunzip2 ./dump.sql.bz2
Case sensitive — Linux is, and grading LS as ls would teach a falsehood.
Why
bunzip2 is bzip2 in decompression mode; `bzip2 -d dump.sql.bz2` is the same operation spelled with an option. Both replace the .bz2 file with the decompressed original unless -k is given to keep it. The gzip family follows the same pattern with gzip, gunzip and gzip -d, and bzcat or zcat write to standard output instead of touching the file on disk.
Where this comes from
- Cited
- manual page bzip2(1)
Practise this
Reading one question is not practice. The trainer will draw a short set from objective 103 and space the ones you get wrong.
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