linux64

Run command in 64-bit personality

$ linux64 command

$ linux64 --uname-2.6 command

$ linux64 -v command

linux64 [options] [program [arguments]]

linux64 is an alias for setarch linux64, which runs a program with a modified architecture domain and process personality flags. It is primarily used to set the reported architecture for uname calls and control process execution environment.

-v, --verbose

Verbose mode

Report kernel version as 2.6.x

Limit address space to 3GB (for 32-bit programs)

Disable address space randomization

Enable short inode mode

This command is typically used for compatibility purposes when running programs that check the system architecture. It does not actually change the underlying architecture.

linux64 is part of the util-linux package, providing architecture personality modification utilities. The companion command linux32 sets 32-bit personality.

setarch(8), linux32(8), uname(1)