vb.net barcode component :w mytextfile in Java

Drawer Code-39 in Java :w mytextfile

To quit vim, type :q. However, if you ve edited a file, you won t be able to quit until the file has been saved. If you want to save the file and then quit, you can type :wq. If you don t want to save the file, type :q!. The exclamation point tells vim to override any objections it might have. You can also use it with the save command :w! to force the overwriting of a file that already exists.

Note If you don t have the correct permissions to write a file, vim might tell you that you can use :w! to

override. In this case, it s wrong. The only way to write to a file for which you don t have permissions is to change its permissions.

Creating and editing a new file with vim is easy. From any command-line shell, simply type this:

This will start vim and give your new file a name. However, the file won t be saved until you manually issue the save command (:w) in vim. This means that if your computer crashes before you save, the file will be lost!

Note vim includes some elementary file-save protection. If, for any reason, vim is not shut down properly, there s a chance you ll be able to recover a version of file the next time vim starts. However, as with all such protection in any kind of program, you shouldn t rely on this. You should use the :w command to save your file periodically.

As always with vim, you start out in the default Command mode. To start typing immediately, enter Insert mode by typing i. You ll notice when typing that although the text is wrapped on each line, words are not carried over, and they often break across lines in an ugly way. This is because vim is primarily a text editor, not a word processor. For people who create text files, like programmers, having line breaks shown in this way can be useful. When you re finished typing a sentence or paragraph, you can press the Enter key as usual to start a new line. You should then be able to move between lines using the up and down cursor keys. You ll notice an odd thing when you try to do this, however: unlike with a word processor, moving up a line of text that spreads across more than one line on screen will take the cursor to the start of the line, rather than into the middle of it. This again relates to vim s text editor focus, where such a feature is useful when editing documents such as program configuration files. When you re finished, press the Esc key to switch to Command mode. Then type a colon to enter Command-Line mode. Type :w to save the file using the filename you gave it earlier. If you started vim without specifying a filename, you ll need to specify a filename with the save command, such as :w myfile.

If all this talk of vim sounds like too much hard work, don t forget that the GNOME desktop includes an excellent text editor in the form of Gedit. In fact, to describe Gedit as merely a text editor is to do it something of a disservice, because it includes many handy word processor like features. You can call Gedit and open a file in it from the command-line prompt as follows: gedit <filename> If you need to adopt superuser powers to edit the likes of configuration files, simply preface it with gksu: gksu gedit <filename> You ll find Gedit fairly straightforward to use.