Solve : set a variable with the output of a command?

1.	Solve : set a variable with the output of a command?
Answer» OK, so in bash scripts, it is easy to do whatever you want with programs. if I want the date in the filename, i merely set the filename to be myfile-`date`.txt and the date is added. This is nearly impossible in batch scripting, but i have found out how. my newest requirement is to have a multi-word command run, such as (for those who are familiar with SVN) svnlook author C:\Repositories\myproject This would output the name of the last person to check in code to myproject I'd like to have a variable with this name in it, such as set AUTHOR= svnlook author C:\Repositories\myproject That, of course, does not work. How can I MAKE it work?!I'm not sure if there's a better way but a work around would be to create an intermediate step... Code: [Select] svnlook author C:\Repositories\myproject > auth set /p Author=&LT;auth del auth FBit would betray my ignorance of batch scripting if I were to TELL you how long I have searched for this answer... THANKS! Glad to help FB Quote from: OutThere on August 19, 2008, 02:10:38 PM This is nearly impossible in batch scripting. What does "nearly" impossible mean? SOMETHING is either possible or it is not. In FACT, including the date in the filename is a trivial task in batch programming. my newest requirement is to have a multi-word command run, such as (for those who are familiar with SVN) svnlook author C:\Repositories\myproject This would output the name of the last person to check in code to myproject I'd like to have a variable with this name in it, such as set AUTHOR= svnlook author C:\Repositories\myproject That, of course, does not work. How can I MAKE it work?! [/quote] In general, we use the FOR command for this kind of thing. If the output of command is a line of text we get the whole line into a variable like this for /f "delims==" %%A in ('command') do set variable=%%A where A is one of a-z or A-Z thanks Dias de VERANO, i hadn't thought of doing it that way before. FB

Answer»

OK, so in bash scripts, it is easy to do whatever you want with programs. if I want the date in the filename, i merely set the filename to be myfile-`date`.txt and the date is added. This is nearly impossible in batch scripting, but i have found out how.

my newest requirement is to have a multi-word command run, such as (for those who are familiar with SVN) svnlook author C:\Repositories\myproject This would output the name of the last person to check in code to myproject I'd like to have a variable with this name in it, such as set AUTHOR= svnlook author C:\Repositories\myproject That, of course, does not work. How can I MAKE it work?!I'm not sure if there's a better way but a work around would be to create an intermediate step...

Code: [Select] svnlook author C:\Repositories\myproject > auth
set /p Author=&LT;auth
del auth

FBit would betray my ignorance of batch scripting if I were to TELL you how long I have searched for this answer...

THANKS! Glad to help

FB Quote from: OutThere on August 19, 2008, 02:10:38 PM

This is nearly impossible in batch scripting.

What does "nearly" impossible mean? SOMETHING is either possible or it is not. In FACT, including the date in the filename is a trivial task in batch programming.

my newest requirement is to have a multi-word command run, such as (for those who are familiar with SVN) svnlook author C:\Repositories\myproject This would output the name of the last person to check in code to myproject I'd like to have a variable with this name in it, such as set AUTHOR= svnlook author C:\Repositories\myproject That, of course, does not work. How can I MAKE it work?!
[/quote]

In general, we use the FOR command for this kind of thing.

If the output of command is a line of text we get the whole line into a variable like this

for /f "delims==" %%A in ('command') do set variable=%%A

where A is one of a-z or A-Z

thanks Dias de VERANO, i hadn't thought of doing it that way before.

FB

Solve : set a variable with the output of a command?

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