Executing command using variable in command prompt

Question

@ECHO OFF
set "str1=cd"
set "str2=%~dp0"
set "str5=CPCE Client\EfileServiceClient""
set "str4=%str1% %str2%%str5%"
Echo.%str4%

i want to execute the command which is existed in variable "str4" how to execute it....

If str5 didn't have a space in it, I'd recommend simply using %str4% by itself as a command. — SomethingDark
– SomethingDark, Commented Sep 10, 2015 at 22:47

aschipfl · Accepted Answer · 2015-09-10 23:59:53Z

1

Simply type %str4% in the command prompt or state it in a batch file to execute its value as a command line.

However, there are some issues in your code:

there is a closing " too much at the str5 assignment, which must be removed; otherwise, the value of str5 equaled CPCE Client\EfileServiceClient";
there is a space in the value of str5; spaces must be handled correctly, as you would type the command in the command prompt; arguments with spaces should be enclosed within "";
(actually, for the cd command (in str1), spaces do not cause any problems, so it would also work without ""; however, for most commands, spaces most probably will cause troubles)

The following adapted code will work:

@echo off
set "str1=cd"
set "str2=%~dp0"
set "str5=CPCE Client\EfileServiceClient"
set "str4=%str1% "%str2%%str5%""
%str4%

answered Sep 10, 2015 at 23:59

aschipfl

35.3k12 gold badges62 silver badges106 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Marged · Accepted Answer · 2015-09-10 21:40:40Z

0

You could do this:

echo %str4% > temp.cmd
call temp.cmd
del temp.cmd

Although I think it would make more sense not to add cd to the string and do this instead:

cd %str4%

answered Sep 10, 2015 at 21:40

Marged

11.1k13 gold badges65 silver badges107 bronze badges