cmdSubstringsOfvariablesLikeDate

cmdSubstringsOfvariablesLikeDate

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Example 1: Using DOS DATE for year

Example 2: Using DOS DATE for month

Example 3: Using substring of user defined variable.

Warning:  When using DATE variables it is affected by your system so different strings can show different results.

Example 1: (Taking more or less parts of the DATE variable)

cmd file:

@echo off

echo DATE = %DATE%

echo set year=DATE:~-4

set year=%DATE:~-4%

echo year is %year%

echo set year=DATE:~-2

set year=%DATE:~-2%

echo year is %year%

echo set year=DATE:~-5

set year=%DATE:~-5%

echo year is %year%

echo set year=DATE:~-10

set year=%DATE:~-10%

echo year is %year%

echo done

Output:

C:\Test>test

DATE = Tue 04/27/2010

set year=DATE:~-4

year is 2010

set year=DATE:~-2

year is 10

set year=DATE:~-5

year is /2010

set year=DATE:~-10

year is 04/27/2010

done

Example 2:

cmd file:

@echo off

echo DATE = %DATE%

echo set year=DATE:~-10,2

set month=%DATE:~-10,2%

echo month is %month%

echo done

Output:

C:\Test>test

DATE = Tue 04/27/2010

set year=DATE:~-10,2

month is 04

done

Example 3: (Your own defined variable)

cmd file:

@echo off

set myVariable=ABCDE

echo myVariable = %myVariable%

echo set year=myVariable:~-4

set year=%myVariable:~-4%

echo year is %year%

echo set year=myVariable:~-2

set year=%myVariable:~-2%

echo year is %year%

echo set year=myVariable:~-5

set year=%myVariable:~-5%

echo year is %year%

echo done

Output:

C:\Test>test

myVariable = ABCDE

set year=myVariable:~-4

year is BCDE

set year=myVariable:~-2

year is DE

set year=myVariable:~-5

year is ABCDE

done