The problem with empty lines can be solved with a trick. Prefix each line with a line number, using the findstr command, and after reading, remove the prefix. Toggling between enable and disabled delayed expansion is neccessary for the safe working with strings, like! But the advantage is, you didn't need the delayed toggling and it's easier to store values in variables. For reading it "binary" into a hex-representation You could look at SO: converting a binary file to HEX representation using batch file.
Also, you can parse ini files! This will only display the first line of text in a text file. The other way you can do it is use the following command:.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Batch files: How to read a file? Ask Question. Asked 13 years, 3 months ago. Active 5 months ago. Viewed k times.
RookieTEC9: I think you're right, it's been a while since this. Add a comment. Active Oldest Votes. Under NT-style cmd. Mahdi Ataollahi 3, 2 2 gold badges 20 20 silver badges 31 31 bronze badges. I am very new to dos programming! It only remembers that last one, so effectively it sets the variable to the last line in the file. Re: Read a file in DOS script 8 Post by foxidrive » Tue Mar 20, pm I'm happy to explain batch commands for a solution to a task but but I like to know the task - and then explanations of the working code are appropriate.
Example - Installation Framework. Features: simple and well structured settings changeable at runtime settings are persistent , the batch will remember all settings from the last run progress indication during simulated file installation. Download: BatchInstall. Simulating an installation for! Pretend to install! This advanced batch template features: Initialization of the command processor Version History for manual script change tracking Window title of choice Delayed exit for unattended completion.
Download: BatchDelayOnExit. Hello World REM. Features: The lookup list will be appended to the batch file itself. Download: BatchListOfFiles. FileSearch, type '-' to refresh lookup list: logoMed. Download: BatchSubstitute.
Showing progress in the output window seems impractical in DOS batch, since there is no way to overwrite a previews output for an updated progress status during each progress tick. Using the ECHO command is not nice, screen content quickly scrolls out of sight.
A nice side effect is that you can minimize the batch window and still observe the progress output in the task bar, since the task bar text will always reflect the window title text.
Download: DosProgress. A Quine is a program whose only output is its program code. This little Quine has been developed by Peter Hartmann. If you use this code make sure to add a reference to DosTips. Features: simple and well structured easy to enhance easy to maintain. Download: BatchMenu. The function template can be used as starting point for a new function. Complete the template into a useful function like this: Rename the function Add proper description for the function and its arguments Fill in the function body Return desired values.
Download: BatchFunctionTmpl. 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.
Download: BatchFTime. Download: FtpLogin. This batch connects twice to the FTP server. This batch executed the FTP script embedded within the batch.
Embed FTP script into a batch script. Features: Single file to distribute combining batch and FTP script. Local files that are are not in this list will then be uploaded during a second connection. If you have multiple FTP scripts that all use the same login information to your FTP site then you may wish to manage the login information separately from your FTP scripts in a single place.
Download: FtpLoginSharing. Embedding SQL script within a batch script is just as easy. Download: Batch4SQL. Download: Batch4SQL2. Download: Batch4Perl. DOS rocks!
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