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
)
)
