concatenate strings using batch script

Question

I am reading some strings from a batch file and trying to append them all, separated by a space. Here is the code

for /F %%x in (C:\dir_1\deploy_build\apps.properties) do (
            set warFiles=%%x%warFiles%
        )
echo %warFiles%

if the content of the properties file is

sz1056
warFile1
warFile2

the output I am getting is warFile2 but the output that i am expecting is sz1056 warFile1 warFile2 How can I do this?

You need delayed variable substitution here, else %%x%warFiles% uses the current value of x and the old (from before the loop started) value of warFiles — Ben Voigt
– Ben Voigt, Commented Aug 3, 2016 at 14:24

npocmaka · Accepted Answer · 2016-08-03 14:25:12Z

1

you need delayed expansion:

setlocal enableDelayedExpansion
for /F %%x in (C:\dir_1\deploy_build\apps.properties) do (
            set "warFiles=%%x !warFiles!"
        )
echo %warFiles%

answered Aug 3, 2016 at 14:25

npocmaka

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4 Comments

viveksinghggits Over a year ago

its working but I am not getting the expected output yet, this is the output I am getting warFile2 warFile1 sz1056 warFile2warFile2

npocmaka Over a year ago

@viveksinghggits and is the issue now?

viveksinghggits Over a year ago

my bad, the output is correct but the sequence is not. I am expecting sz1056 warFile1 warFile2 but getting warFile2 warFile1 sz1056 as output.

npocmaka Over a year ago

@viveksinghggits because I used your logic. change the set line to set "warFiles=!warFiles! %%x"

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