A hidden file in Unix is any file that starts with a '.' in the name. Any utility that creates files can create a hidden file.
Note: it is important to know that a hidden file is usually one that doesn't need to be shown in a directory listing all the time so unless you use the special option to show them they won't show up in a listing. Other than that, they have no special attributes.
There are no actual "hidden" files in Unix. The only way to hide the existence of a file is to place it in a folder that no one has read permissions for.
using touch command of UNIX. syntax touch <filename> will create dummy regular file.
There is no the system file. There are many files necessary to create a working Unix system.
cat file name
A hidden file is one that starts with a period (.). These are usually files that always exist, but most users don't want to see them in a file listing. Any file can be hidden from the normal file listing by naming it with a leading period symbol.
The 'touch' command creates a new empty file in Unix.
+h The above answer is incomplete and incorrect; "normally hidden" files in Unix merely start with the '.' character and are not normally shown by the ls command. Use the 'mv' to rename it if it doesn't start with a period.
A hidden file is any file or directory that starts with the character '.' (period). It is designed to eliminate common files from showing with the 'ls' command. Using the -a option for 'ls' will show all files.
The Unix file contains which kinds of fields?
For TAR archives, you use tar -cvf .
cp - copy a file rm - delete a file mv - rename a file mkdir - create a directory rmdir - remove a directory etc...
The host file in Unix is usually located in the /etc directory.