Difference between revisions of "Windows batch"
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= Fciv - integration check = | |||
The script assumes the md5 hash value is contained in a .md5 file and the naming convention appears as so: | |||
download.7z | |||
download.7z.md5 | |||
<source lang=bash> | |||
:md5 | |||
for /f %%f in ('dir "*.md5" /s/b') do ( | |||
set file=%%f | |||
for /f %%a in ('type "!file!"') do ( | |||
set md5=%%a | |||
set md5=!md5:"=! | |||
set file=!file:~,-4! | |||
for /f "skip=3" %%b in ('fciv "!file!"') do ( | |||
if [!md5!]==[%%b] ( | |||
echo PASS: !file! | |||
echo MD5: !md5! vs. %%b | |||
echo. | |||
) else ( | |||
echo !!! FAIL: !file! | |||
echo MD5: !md5! vs. %%b | |||
) | |||
) | |||
) | |||
) | |||
</source> | |||
= IF and ELSE = | |||
;The else needs to be on the same "line" as the if. From IF /? 'The ELSE clause must occur on the same line as the command after the IF.' | |||
if "zz"=="TRUE" ( | |||
copy /a zz + /a ee=/a zz | |||
) else ( | |||
copy /a e + /a %TMP%=/a e | |||
) | |||
;Environment variables in batch files are expanded when a line is parsed. | |||
In the case of blocks delimited by parentheses (as your if defined) the whole block counts as a "line" or command and it is read once. This means that all occurrences of %FOO% are replaced by their values before the block is run. Therefore %FOO% will be replaced by nothing as it was not set. | |||
To solve this you can enable delayed expansion: | |||
setlocal enabledelayedexpansion | |||
Delayed expansion causes variables delimited by exclamation marks (!) to be evaluated on execution instead of parsing which will ensure the correct behavior in our case: | |||
if not defined BAR ( | |||
set FOO=1 | |||
echo Foo: !FOO! | |||
) | |||
= Text manipulation = | = Text manipulation = | ||
*color 0a - changes text to green | *color 0a - changes text to green | ||
*mode con: cols=80 lines=50 - changes cmd.exe window, no scroll available, type '''mode''' to display the current settings | *mode con: cols=80 lines=50 - changes cmd.exe window, no scroll available, type '''mode''' to display the current settings | ||
= References = | = References = | ||
*[http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/percent.mspx?mfr=true Using batch parameters] | *[http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/percent.mspx?mfr=true Using batch parameters] | ||
*[http://technet.microsoft.com/en-us/library/bb490890.aspx Command-line reference A-Z] For tylda parameters look for FOR | *[http://technet.microsoft.com/en-us/library/bb490890.aspx Command-line reference A-Z] For tylda parameters look for FOR | ||
*[http://stackoverflow.com/questions/112055/what-does-d0-mean-in-a-windows-batch-file What does %~d0 mean in a Windows batch file?] | *[http://stackoverflow.com/questions/112055/what-does-d0-mean-in-a-windows-batch-file What does %~d0 mean in a Windows batch file?] | ||
[[Category:Windows]] | |||
Latest revision as of 13:51, 13 December 2015
Fciv - integration check
The script assumes the md5 hash value is contained in a .md5 file and the naming convention appears as so:
download.7z download.7z.md5
:md5
for /f %%f in ('dir "*.md5" /s/b') do (
set file=%%f
for /f %%a in ('type "!file!"') do (
set md5=%%a
set md5=!md5:"=!
set file=!file:~,-4!
for /f "skip=3" %%b in ('fciv "!file!"') do (
if [!md5!]==[%%b] (
echo PASS: !file!
echo MD5: !md5! vs. %%b
echo.
) else (
echo !!! FAIL: !file!
echo MD5: !md5! vs. %%b
)
)
)
)
IF and ELSE
- The else needs to be on the same "line" as the if. From IF /? 'The ELSE clause must occur on the same line as the command after the IF.'
if "zz"=="TRUE" (
copy /a zz + /a ee=/a zz
) else (
copy /a e + /a %TMP%=/a e
)
- Environment variables in batch files are expanded when a line is parsed.
In the case of blocks delimited by parentheses (as your if defined) the whole block counts as a "line" or command and it is read once. This means that all occurrences of %FOO% are replaced by their values before the block is run. Therefore %FOO% will be replaced by nothing as it was not set.
To solve this you can enable delayed expansion:
setlocal enabledelayedexpansion
Delayed expansion causes variables delimited by exclamation marks (!) to be evaluated on execution instead of parsing which will ensure the correct behavior in our case:
if not defined BAR (
set FOO=1
echo Foo: !FOO!
)
Text manipulation
- color 0a - changes text to green
- mode con: cols=80 lines=50 - changes cmd.exe window, no scroll available, type mode to display the current settings
References
- Using batch parameters
- Command-line reference A-Z For tylda parameters look for FOR
- What does %~d0 mean in a Windows batch file?