In Unix and Linux, the global temporary directories are /tmp and /var/tmp. Web browsers periodically write data to the tmp directory during page views and downloads. Typically, /var/tmp is for persistent files (as it may be preserved over reboots), and /tmp is for more temporary files.
What does tmp folder do?
Web servers have a directory named /tmp used to store temporary files. Many programs use this /tmp directory for writing temporary data and generally remove the data when it is no longer needed. Otherwise the /tmp directory is cleared when the server restarts.
Can I delete files in tmp directory Linux?
Every Linux system has a directory called /tmp which has mounted with separate file system. … /tmp directory is a directory used to hold temporary files (or session files) when application is running. Those temporary files will be deleted automatically by application once their process is got completed.