I am very new to creating batch files.
I have to run a command, with an increasing file number e.g
c:>program.bat -propertyfile "1.property"
Right now, I have to type the command manually, wait 1 minute, then type the command again by increasing the property file # i.e "2.property" "3.property" "4.property" etc....
I want to automate this, and still would like to see the results in the command prompt as it runs.
How can this be accomplished?
See https://ss64.com/nt/for.html and specifically https://ss64.com/nt/for_l.html
FOR /L %%G IN (1,1,4) DO program.bat -propertyfile "%%G.property"
Should run your command for files 1.property to 4.property but if you're actually running it for files in a directory rather than a list of integers one of the other FOR constructs might be more appropriate. Perhaps https://ss64.com/nt/for_r.html
Related
I am trying a bit of experiments with airmon-ng script in Linux. Meanwhile i want to redirect output of a process "airodump-ng mon0" to a file. I can see the instantaneous output on the screen. The feature of this process is that it won't stop execution(actually it is a script to scan for AP and clients, it will keep on scanning) unless we use ctrl+c.
Whenever i try
airodump-ng mon0 > file.txt
i won't get the output in the file.
My primary assumption is that the shell will write it to the file only after completing the execution. But in the above case i stopped the execution(as the execution won't complete).
So to generalize i can't pipe the output of a running process to a file. How can i do that?
Or is there any alternative way to stop the execution of the process(for example after 5 seconds) and redirect the current output to a file?
A process may send output to standard output or standard error to get it to the terminal. Generally, the former is for information and the latter for errors, but in some cases, a process may mix them up.
I'm supposing that in your case, the standard error is being used. To get both of these to the output file, you can use:
airmon-ng mon0 > file.txt 2>&1
This says to send standard output to file.txt and to reroute 2 (which is the file id for standard error) into 1 (the file id for standard output) so that it also goes to the file.
To run a CUDA C program we build the program and then run the binary file created from the command line as
/.prgm_bin_file
If for example the program needs some input files like for programs to image processing, I want to supply the data files or the input files at the time of compilation.
How can I do that. How the above command can be edited to give the required files.
Thanks in advance.
If your program opens data files to use for input, it's using some file I/O API to do so. For example, one possible method is to use fopen.
Just to use it as an example, if you are using fopen, it expects a filename (a character string) passed as the first parameter.
Many programs will take this filename from a the command line used to invoke the program. But there's nothing that would prevent you from hard-coding the filename:
fp=fopen("mydata", "r");
In that case, the program would always attempt to open the file mydata
But if your program is already designed to use the filename as a command line parameter, it's not clear that this is any more useful than just invoking your program that way:
./prgm_bin_file mydata
I have a folder into which a number of MSQL scripts get dropped into after each weekly sprint. For example, 10 scripts were placed into the folder today. I had to then open each script individually and run it against the applicable database. The database that it needs to be run against is in the name of the file.
e.g. [2] [CRMdata]UpdateProc.sql
The [2] represents the sequence in which it is run, so script [1] needs to be run before it.
[CRMdata] is the database I have to run it against.
This process is very tiresome, especially if there are 50 scripts to run sequentially.
I was wondering if there was an easier way to do this?
Perhpas a .bat file, which reads the filename, and executes the scripts sequentially based on the script number, as well as executing it against the database specified in the file name.
Any help is much appreciated.
Thanks.
First, when you need to run things, consider using SQL Server Job Agent. This is a good way to schedule simple things.
For a task like this, I would recommend PowerShell in combination with "sqlcmd". This command is actually the answer to your question, since it will run scripts from the command line.
However, go a step further. Schedule a job that runs once per week (or whenever you want it run). Have it consist of one step, a PowerShell script. This can then loop through all the scripts in the directory, extract the file name from the name, and run the script using sqlcmd. Along the way, also log what you are doing in a table so you can spot errors.
I don't know anything about executing SQL with MSQL. You will have to work out how to run each script against the proper database using whatever command-line utility is provided for MSQL.
I can help you with a batch file that will sort the SQL files in the correct sequence order, and parse out the name of the database.
The job is much easier in batch if the sequence numbers are zero prefixed to be a constant width. I'm assuming it is OK to rename the files, so that is what this solution does.
I also assumed you will never have more than 999 files to process. The code can easily be modified to handle more.
Some changes will have to be made if any file names contain the ! character because delayed expansion will corrupt the expansion of the FOR variables. But that is an unlikely problem.
#echo off
setlocal enableDelayedExpansion
:: Change the definition to point to the folder that contains the scripts
set "folder=sqlCodeFolder"
:: The mask will only match the pattern that you indicated in your question
set "mask=[*] [*]*.sql"
:: Rename the .sql files so that the sequence numbers are zero prefixed
:: to width of 3. This enables the default alpha sort of the directory to be
:: in the proper sequence
for /f "tokens=1* delims=[]" %%A in ('dir /b "%folder%\%mask%"') do (
set seq=00%%A
ren "%folder%\[%%A]%%B" "[!seq:~-3!]%%B"
)
::Process the renamed files in order
for %%F in ("%folder%\%mask%") do (
for /f "tokens=2 delims=[] " %%D in ("%%~nF") do (
rem %%F contains the full path to the sql file
rem %%D contains the name of the database, without enclosing []
rem Replace the echo line below with the proper command to run your script
echo run %%F against database [%%D]
)
)
I need to know some basic information on the for command in batch scripts. One thing I want to know is why its %%variable instead of %variable%.
%A is for use on command lines only.
%%A is used when used in batch files.
The single-percent %a syntax indicates a local variable within a batch file.
The percent-bracketed %foo% represents the value of an environment variable named foo.
From ss64.com:
If you are using the FOR command at the command line rather than in a batch program, specify %parameter instead of %%parameter
So %%param is for batch scripts and %param is for live commands. Greg is right, %param% is a different kind of variable. The "variable" in the FOR command exists only that scope, while environment %variables% persist in a wider scope.
I am trying to write a batch file that starts another batch file, waits for that batch file to complete its job, and then continue once that other batch file has exited. However, when I manually close the batch file launched by the first batch file, it comes up with a prompt saying:
^CTerminate batch job (Y/N)?
Is there a way to automatically select 'N', because it needs to delete some temporary files on exit.
Purpose/Premise of Script: To be able to remove a flash drive and lock the station (hence copying files to external source).
Summary of Script:
Program Copies files to %homedrive%
Program launches another script (one of the files copied to homedrive)
After that program quits, it deletes the copied files
Solutions Tried:
Different command switches inside of START /WAIT +/I +/B (Adding /I
or /B did not produce anything useful)
Using /C and /K switches after the START /WAIT program.bat +/C +/K
(had no affect)
Well, you could use echo n | program.bat to automatically respond n to ^CTerminate batch job (Y/N)?, but an easy way to fool this method is to hit and keep pressed [Ctrl]-C.
There simply is no reliable way to disable the interruption of any program (much less a batch file). What stops the user from just closing the window?
You would want a command like this:
start /wait program.bat|echo n>nul
">nul" will hide the "n" that shows up afterwards. But there doesn't seem to be a way to stop "^C" from showing up.