Concatenate string in dos batch file

If the string does not have quotes then it will remain unchanged. Trimming spaces at the end of a variable seems a little tricky. The following example shows how to use a FOR loop to trim up to 31 spaces from the end of a string. It assumes that Delayed Expansion is enabled. The following example shows how to use the string substitution feature to trim up to 31 spaces from the end of a string.

It assumes that the string to be trimmed never contains two hash " " characters in a row. Connect and share knowledge within a single location that is structured and easy to search.

Now you will have all text files in this folder ordered by date ascending merged into a single file called newfile. My ultimate aim is to store the contents of each text file in a separate column of an Excel sheet. To add a newLine at the end of each concatenated file, use type instead of copy , as follows:. Assuming you are talking about appending text files, the copy command can be used to append them together:.

This assumes that you know the binary files you are working with can be appended back-to-back; if not, you will get a lump of useless data. The following. Tested on Win 10 CMD. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Learn more. A command-line or batch cmd to concatenate multiple files Ask Question. Asked 11 years, 10 months ago. Active 1 year, 2 months ago. Viewed k times. It just solved me a problem creating dynamically a classpath into a batch file : Adding the necessary modifications, but my problem was doing the concat and this has fixed it!

The restriction is wrong. The maximum environment variable size in Windows is around 64 KiB, so around 32k characters. In batch files, however, you have the problem that the maximum command-line length is characters, so every environment variable you set there must be shorter.

Also, the 65 KiB total environment restriction is bogus. I just created environment variables totalling at a few MiB without problems. I won't argue though, since I never dealt with it. So people don't make the same newbie mistake I did, remove "the list:" if you don't want that in your myvar. Pierre Pierre 3, 2 2 gold badges 32 32 silver badges 37 37 bronze badges.

Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Also to concatenate, you don't have read: must not use something like concatenation symbols:. To rename a file, use ren or the long form rename. 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. Concatenating strings and variables in batch Ask Question. Asked 5 years, 9 months ago. Active 5 years, 9 months ago. Viewed 47k times. Improve this question. Ross Ridge Why are you using DOS?