Windows批处理脚本中的增量文件名

Question

I was looking to save ping results to a text file and have got a crude script batch file running which is working.

What i want to achieve is that when ever the batch file is run(in this case when the system boots, the user will manually run it) the ping logfile is incremented as in it becomes Day 01 d:\\pingresults.txt Day 02 d:\\pingresults+xx.txt

Or if the date can be appended at the end The current batch script

    :start
@echo ****DO NOT CLOSE****
@echo off
DATE /T
TIME/T
echo %date% >> d:\pinghostname.txt
echo %time% >> d:\pinghostname.txt
ping 8.8.8.8 >> d:\pinghostname.txt
timeout /t 30
goto start

Any ideas?

Answer 1

If I understood it correctly you want to add a timestamps to your files.

Something like this:

SET "job_start_date=%date:~6,10%%date:~3,2%%date:~0,2%"

which will produce (each part between %...% is taking part of the date):

20181109

So your script would look like this:

:start
@echo ****DO NOT CLOSE****
@echo off
DATE /T
TIME/T
SET "job_start_date=%date:~6,10%%date:~3,2%%date:~0,2%"
echo %date% >> d:\pinghostname_%job_start_date%.txt
echo %time% >> d:\pinghostname_%job_start_date%.txt
ping 8.8.8.8 >> d:\pinghostname_%job_start_date%.txt
timeout /t 30
goto start

then you will get a filename: pinghostname_20181109.txt