At the prompt, type:
head filename
For example, if you have a file named file.txt, type:
head file.txt
To fetch a specific number of records from a file, e.g. 15, type:
head -15 file.txt
To see more options of 'head' command run 'man head'.
first, make a file. in the file you type in the command's name. an example would be the command date. name the file what you want to call that command. when you use the command, type in cat filename and the computer will do the command.
cat
Assuming that the file you are looking at is a columnar file you can use the 'cut' command, as in 'cut -c1-2 filename'
yes
The Save command, which can also be activated by the Ctrl - S keyboard shortcut. If it is the first time it is being saved, then you can use Save As. This will happen automatically as when it is first saved you need to specify a name, location and the file type for the file.
When are records transferred from the general alphabetic file to the numbered file?
The 'file' command in Unix attempts to guess what type of file you are looking at by reading the first several sections of the file and comparing it to a list of known contents for files. It is a useful command if you just want to know what type of file something is without having to examine it yourself. The command is not perfect because it does not detect all types of files but it does a reasonable job of guessing. It is used because in Unix there are no file extension types to tell us what kind of file a given file might be; you have to look inside the file to tell how it might be used.
The 'touch' command creates a new empty file in Unix.
the DEL command deletes a specified file when typed in the form below: del file for more information about the command, type : del /? in command prompt
Anything can be made into a command on a Linux system. The steps are easy. First, using any text editor (vim, emacs, etc.) create a text file. Put anything you want to do in this file. Save the file. Make sure the file you just created has read and execute permissions (chmod). That's it! Now you have a command that you can execute in Linux.
that is the command for system file checker.
The DOS message "bad command or file name" means that the command you entered was not recognized as an internal command or as an external command in the working directory or path.