Which command is used to show only hidden files?
To just display dot files use any one of the following command: $ ls -a | egrep ‘^\. ‘…Bash list only hidden files.
| Tutorial details | |
|---|---|
| Difficulty level | Easy |
| Root privileges | No |
| Requirements | Bash |
| Est. reading time | N/A |
Which flag is used to view list all the files of the archive?
If you do not specify any files, the -t flag lists all files in the library. Allows file name truncation if the archive member name is longer than the file system supports.
When archiving files which command will preserve all file attributes?
tar. –xattrs – Save the user/root xattrs to the archive called file. tar Please that it archive all extended attributes, including SELinux and ACLs. -c – Create a new archive called file.
How do I compress a folder using archive command?
To compress files using bzip2, simply run “bzip2” with the filename that you want to compress. In order to decompress files compressed using bzip2, simply append the “-d” option to your command. Alternatively, you can create bz2 archives using the tar command and by specifying the “-j” option.
Which tar command option is used to extract the archive file?
Conclusion. The most common uses of the tar command are to create and extract a tar archive. To extract an archive, use the tar -xf command followed by the archive name, and to create a new one use tar -czf followed by the archive name and the files and directories you want to add to the archive.
How do I zip a log file?
To compress files you can use gzip, bzip2 and zip commands. To expand compressed file (decompresses) you can use and gzip -d, bunzip2 (bzip2 -d), unzip commands.
How do I compress a log file?
Tools like “grep google” and “gzip” are your friends.
- Compression. On average, compressing text files leads to reduce the size by 85%.
- Pre-Filtering. On average, pre-filtering reduces logs files by 90%.
- Combining both. When combined compression and pre-filtering together we usually reduce the file size by 95%.
How do I gzip a log file?
gzip all the files
- Change the directory to audit logs as follows: # cd /var/log/audit.
- Execute the following command in the audit directory: # pwd /var/log/audit.
- This will zip all the files in audit directory. Verify the gzipped log file in the /var/log/audit directory:
Can we zip var log messages?
As is explained in another logrotate question on ServerFault, the old logs are (most likely) not being removed because the file endings are different for each file. This appears to be because the files are not being gzipped.
What does var log contain?
a) /var/log/messages – Contains global system messages, including the messages that are logged during system startup. There are several things that are logged in /var/log/messages including mail, cron, daemon, kern, auth, etc.