Dos batch file examples set




















You can make it loop back and wait for the same time tomorrow by replacing :end with goto loop. The user or calling program invokes this with a time in the same format as the target time as the only argument. There is no error checking, so to avoid a syntax error or endless looping it is essential that you make sure the argument is a valid time stamp for a file and is one that will eventually be generated.

The two can be combined to run the program at a specific time on a specific date. It is possible to save and restore the current drive and directory, but it's so intricate that it is seldom done.

There are utilities that push and pop directories and are much more reliable and easier to use. This code tests for that - and for the special case where the directory is writable but not erasable another of the bright ideas from the higher ups. Using the same test file name in every instance of the test program limits the buildup of orphaned files. There are some problems with this code - particularly the point that it crashes with a blank screen if TEMP points to a drive with removable media that has been removed or if there are any other errors that cause an ARF Abort, Retry, Fail error message.

Someone asked about getting DIR listings for a list of extensions - I have expanded that to include named categories of files in this example. While it might seem appropriate to put this in the writeup on DIR, I put it here and referenced it from several of the other places it might belong - it illustrates far too many esoteric features of batch language to warrant putting it with any specific command.

Type names are always at least four characters so that they can't conflict with real extensions of one, two, or usually three characters. If any arguments are used, the first must be the path to the directory, often just '. The latter adds a bit of complication to the program. NULL is not really a type - it's a place holder for a blank - so it can be combined with other extensions in a list; regular type names cannot be combined into lists.

This program pages the display - if that is not needed it can be simplified somewhat. Almost every line of this batch file would make a good exam question - the task itself would be a good challenge for extra credit - the above solution would almost do as a final exam all by itself.

There are few students of batch language who can be expected to understand that code, so I have provided a line-by-line explanation as a separate file. These are left as exercises for the reader. They are not impossible - even totaling the byte counts is possible - but they do add significant amounts of both code and complication, and this example is complicated enough already four layers and two command processors deep.

This knock off tells whether or not a directory exists. This is annoying on my box it takes up to 5 minutes.

This little batch gets it done. It temporarily stops the spooler service and removes all files from the printer queue. Beware though that all printer jobs will be deleted, not only the ones that got canceled. This simple menu framework parses itself for batch labels of certain signature and lists them as menu items.

The self-parsing feature makes the menu generic. New menu items can be inserted by adding new function blocks without changing the menu infrastructure. Date and Time functions are useful for: Calculations with date and time values Determine the age of files in days Determine the date difference in days.

The example in this section demonstrates how to use the :ftime function to determine the age in days of all files in the temp directory. Two variables are used tnow - stores the current day in julian days format by calling :jdate tfile - stores the file date in julian days format by calling :ftime.

Read more about this behavior in the SET command help bottom half of the help text. If you frequently find yourself calling FTP from the command line, each time having to login and change directory and change FTP modes, until you finally get where you want be in order to do some real work then you may wish to get there with a singe click.

This little batch can connect to your FTP server and logs you in before it gives you the prompt. You can easily add more FTP commands to it, like changing directories or switching to binary mode or whatever you like to be done before taking over control on the FTP prompt.

The FTP connection information is embedded within the batch itself. Optionally a FTP script can be provided as input stream, that way multiple FTP scripts can share the same login information. Example: FtpLogin. First time it retrieves a list of files on the FTP server. The files in the trimmed list are then downloaded during a second connection.

Title Connecting Title Preparing Title Processing Title Disconnecting All variables in the FTP script will be resolved. All batch lines start with semicolon so that they will be ignored by the FOR loop. Script: 1. Add this line at the beginning of the FTP script:. The "FTP -s:ftpscript. Good: You end up with only one file that contains the batch script and the FTP script combined.

Minor flaw: The batch command in the first line causes an "Invalid command. That way if the username, password or hostname for the FTP connection changes you only need to edit a single place instead of having to edit all FTP scripts one by one. This automatic login script also described in detail earlier can be used to execute different FTP scripts that share the same login information stored within the batch file.

This is no different from regularly executing FTP with -s option. Script: Download: FtpLoginSharing. The following batch script executes itself in SQL context. The trick is the GOTO command in the first line of the script. The batch script will then run the OSQL. In fact the file can be opened and executed in Query Analyzer as is, since the batch script in the file looks like a comment to the query language processor.

Now we can embed SQL queries into a batch file. This command allows you to read and delete variables in the command prompt. This command allows you to change the title of the command prompt window. This command allows you to start some programs or some commands.

Example: The following example will start two programs called Notepad and Calculator. This command allows you to closes the session, restarts the computer, or shuts it down. Example: The following example will shut down your computer in 60 seconds. This command allows you to search for one or more files by using character input. This command allows you to display data page by page on the screen.

Example: The following example will display the content of myFile. This command allows you to display the contents of text files. This command allows you to test the connection with another device. Example: The following example will ping a website example. Your email address will not be published. Windows September 14, October 10, admin 0 Comments batch file basic commands with examples , batch file commands examples , batch file commands list with examples , batch file commands list with examples pdf , batch file commands pdf , batch file commands to open an application , batch file commands windows 10 , batch file variables , batch script , create batch file to run command , dos batch file commands examples , notepad batch file commands list , useful batch files , windows batch file commands examples.

CD This command allows you to switch to another directory or folder. Example: The following example switch to the parent directory: echo off CD.. Stage 1: Examining basic file system structure File verification completed.



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