Sometimes we need to truncate (make it size 0) a large opened file by a running process (e.h. php error log, apache error logs, custom log files, etc.) Deleting the file may not be a good idea as application has opened a file handle on it. It can be done using command
truncate on Linux/Unix/Mac.
## -s 0 sets new size to 0 $ truncate -s 0 filename
Few points to note
- On mac truncate can be installed using
$ brew install truncate
- Truncate does not change inode number of the file
## Check inode number of file1.txt $ ls -i file1.txt 412882 file1.txt $ truncate -s 0 file1.txt $ ls -i file1.txt 412882 file1.txt