Touch (command)

touch is a command used to update the access date and/or modification date of a computer file or directory or to create it.

 touch /etc/resolv.conf
 touch: cannot touch '/etc/resolv.conf': No such file or directory

touch ~/.ssh/authorized_keys

Related commands

• truncate
• fallocate
• type nul > authorized_key (Windows)

See also

• file, File system, directory, touch, mkdir, ls, ln truncate, fallocate, split, stat, inode, File descriptor, superblock, block size (blockdev), fuser, lsof, scrub, chattr, ulimit (nofiles), cp, mv, file (command), mkfifo, chmod

https://en.wikipedia.org/wiki/Touch_(command)