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Here are some of the system calls that may be called when a file is created in Linux:

Explained about what happens in linux kernel when File is created and deleted.

open(): This system call is used to create a new file or to open an existing file.
creat(): This system call is a shortcut for creating a new file with default permissions.
write(): This system call is used to write data to a file.
read(): This system call is used to read data from a file.
lseek(): This system call is used to change the current position in a file.
close(): This system call is used to release the file descriptor and free any system resources used by the file.
unlink(): This system call is used to delete a file.
rmdir(): This system call is used to delete an empty directory.
unlinkat(): This system call is used to delete a file relative to a directory file descriptor.
rename(): This system call is used to rename a file or move it to a different directory.