I'm writing a batch file and I need to know if a file is read only. How can I do that ?
I know how to get them using the %~a modifier but I don't know what to do with this output. It gives something like -ra------. How can I parse this in batch file ?
Something like this should work:
@echo OFF
SETLOCAL enableextensions enabledelayedexpansion
set INPUT=test*
for %%F in (%INPUT%) do (
set ATTRIBS=%%~aF
set CURR_FILE=%%~nxF
set READ_ATTRIB=!ATTRIBS:~1,1!
@echo File: !CURR_FILE!
@echo Attributes: !ATTRIBS!
@echo Read attribute set to: !READ_ATTRIB!
if !READ_ATTRIB!==- (
@echo !CURR_FILE! is read-write
) else (
@echo !CURR_FILE! is read only
)
@echo.
)
When I run this I get the following output:
File: test.bat Attributes: --a------ Read attribute set to: - test.bat is read-write File: test.sql Attributes: -ra------ Read attribute set to: r test.sql is read only File: test.vbs Attributes: --a------ Read attribute set to: - test.vbs is read-write File: teststring.txt Attributes: --a------ Read attribute set to: - teststring.txt is read-write
To test a specific file:
dir /ar yourFile.ext >nul 2>nul && echo file is read only || echo file is NOT read only
To get a list of read only files
dir /ar *
To get a list of read/write files
dir /a-r *
To list all files and report whether read only or read/write:
for %%F in (*) do dir /ar "%%F" >nul 2>nul && echo Read Only: %%F|| echo Read/Write: %%F
EDIT
Patrick's answer fails if the file name contains !
. This can be solved by toggling delayed expansion on and off within the loop, but there is another way to probe the %%~aF
value without resorting to delayed expansion, or even an environment variable:
for %%F in (*) do for /f "tokens=1,2 delims=a" %%A in ("%%~aF") do (
if "%%B" equ "" (
echo "%%F" is NOT read only
) else (
echo "%%F" is read only
)
)
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