How to find out top 10 files and directories on Linux or Unix
- du command : Estimate file space usage.
- sort command : Sort lines of text files or given input data.
- head command : Output the first part of files i.e. to display first 10 largest file.
- find command : Search file.
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Also know, how do I find the largest files on Linux?
The procedure to find largest files including directories in Linux is as follows:
- Open the terminal application.
- Login as root user using the sudo -i command.
- Type du -a /dir/ | sort -n -r | head -n 20.
- du will estimate file space usage.
- sort will sort out the output of du command.
Additionally, how find files larger than 100mb Linux?
- File size >= 100MB. Find all files that have a size >= 100MB, from root folder and its sub-directories. sudo find / -type f -size +100000k -exec ls -lh {} ; | awk '{ print $9 ": " $5 }'
- File size >= 50MB. Find all files that have a size >= 50MB, from folder '/Users/mkyong' and its sub-directories.
In respect to this, how can I tell which files are taking up space Linux?
To find out where disk space is being used:
- Get to the root of your machine by running cd /
- Run sudo du -h --max-depth=1.
- Note which directories are using a lot of disk space.
- cd into one of the big directories.
- Run ls -l to see which files are using a lot of space. Delete any you don't need.
- Repeat steps 2 to 5.
How do I sort files by size in Unix?
The -S option is the key, telling the ls command to sort the file listing by size. The -h option tells ls to make the output human readable, and -r tells it to reverse the output, so in this case the largest files are shown at the end of the output.
Related Question AnswersHow do I find the oldest files in Linux?
Find The Oldest File In A Directory Tree In Linux- find – Search for files in a directory hierarchy.
- /home/sk/ostechnix/ – Search location.
- type -f – Searches only the regular files.
- -printf '%T+ %p ' – Prints the file's last modification date and time in separated by + symbol.
What does LS stand for Linux?
The ls command (short for list) will show a directory-listing. It is one of the most common ones used when interacting with a text interface to a Linux system.How do I truncate a file in Linux?
The easiest and most used method to truncate files is to use the > shell redirection operator.Shell Redirection
- The : colon means true and produces no output.
- The redirection operator > redirect the output of the preceding command to the given file.
- filename , the file you want to truncate.
How do I see CPU usage on Linux?
14 Command Line Tools to Check CPU Usage in Linux- 1) Top. The top command displays real time view of performance related data of all running processes in a system.
- 2) Iostat.
- 3) Vmstat.
- 4) Mpstat.
- 5) Sar.
- 6) CoreFreq.
- 7) Htop.
- 8) Nmon.
What is Varlog Lastlog?
lastlog is a program available on most Linux distributions. It formats and prints the contents of the last login log file, /var/log/lastlog (which is a usually a very sparse file), including the login name, port, and last login date and time.What does du command do in Linux?
Du Command in Linux. Share: The du command, short for “disk usage” reports the estimated amount of disk space used by given files or directories. It is practically useful for finding files and directories taking up large amounts of disk space.What is taking up disk space Linux?
Linux command to check disk space- df command – Shows the amount of disk space used and available on Linux file systems.
- du command – Display the amount of disk space used by the specified files and for each subdirectory.
- btrfs fi df /device/ – Show disk space usage information for a btrfs based mount point/file system.
How do I check memory usage on Linux?
5 commands to check memory usage on Linux- free command. The free command is the most simple and easy to use command to check memory usage on linux.
- /proc/meminfo. The next way to check memory usage is to read the /proc/meminfo file.
- vmstat. The vmstat command with the s option, lays out the memory usage statistics much like the proc command.
- top command.
- htop.
Where is my disk space being used?
To see how the hard drive space is being used on your computer on Windows 10 version 1809 or earlier, use these steps:- Open Settings.
- Click on System.
- Click on Storage.
- Under the “Local storage” section, click the drive to see usage. Local storage on Storage sense.
How do I check my disk space?
Method 1 On Windows- Open Start. .
- Open Settings. .
- Click System. It's a computer-shaped icon on the Settings page.
- Click the Storage tab. This option is in the upper-left side of the Display page.
- Review your hard drive's space usage.
- Open your hard disk.
How do I see partitions in Linux?
9 commands to check hard disk partitions and disk space on Linux- fdisk. Fdisk is the most commonly used command to check the partitions on a disk.
- sfdisk. Sfdisk is another utility with a purpose similar to fdisk, but with more features.
- cfdisk. Cfdisk is a linux partition editor with an interactive user interface based on ncurses.
- parted.
- df.
- pydf.
- lsblk.
- blkid.
What is the maximum file size in Linux?
Table A.2. Maximum Sizes of File Systems (On-Disk Format)| File System | File Size [Byte] |
|---|---|
| Ext2 or Ext3 (4 kB block size) | 241 (2 TB) |
| Ext2 or Ext3 (8 kB block size) (systems with 8 kB pages (like Alpha)) | 246 (64 TB) |
| ReiserFS 3.5 | 232 (4 GB) |
| ReiserFS 3.6 (under Linux 2.4) | 260 (1 EB) |
How do I clean up Linux Mint?
There are 3 terminal commands which you can use top clean up Linux Mint.All three commands contribute to free up disk space.
- sudo apt-get autoclean. This terminal command deletes all .
- sudo apt-get clean. This terminal command is used to free up the disk space by cleaning up downloaded .
- sudo apt-get autoremove.
How do I clear Yum cache in Linux?
So to clean all the cached packages from the enabled repository cache directory, login as root and execute the following:- yum clean packages. To purge the old package information completely, execute the following command:
- yum clean headers.
- yum clean metadata.
- yum clean all.
How can I find a file from a specific date?
To search for files created or changed during a specific date, follow these steps:- Click the Start button and click Computer.
- Click in the Search box, located in your newly opened folder's top, right corner, and type in a few words relating to your missing file.
How do you sort in Unix?
Some of the options supported are:- sort -b: Ignore blanks at the start of the line.
- sort -r: Reverse the sorting order.
- sort -o: Specify the output file.
- sort -n: Use the numerical value to sort.
- sort -M: Sort as per the calendar month specified.
- sort -u: Suppress lines that repeat an earlier key.
How do you sort in Linux?
SORT command in Linux/Unix with examples- SORT command sorts the contents of a text file, line by line.
- sort is a standard command line program that prints the lines of its input or concatenation of all files listed in its argument list in sorted order.
- The sort command is a command line utility for sorting lines of text files.
How do I create a GZ file in Unix?
gz file on Linux is as follows:- Open the terminal application in Linux.
- Run tar command to create an archived named file. tar. gz for given directory name by running: tar -czvf file. tar. gz directory.
- Verify tar. gz file using the ls command and tar command.