CODEWITHSUNDEEP
windowsbatch-file
Ben Williams
Ben Williams

Reputation: 109

Aligning output of echo command in batch script

I have written a simple batch file to parse a log file and print out the required data on the screen. I have everything working except for the fact that my output is not aligned properly as I would like it to be. Here is my batch script:

@echo off
setlocal
echo Name               Reg No.
echo -------------------------------------
for /f "tokens=1-3 delims=' " %%A in ('findstr "Registered" registration.log') do (
     echo %%B               %%C
)
endlocal

The output is:

Name               Reg No.
-------------------------------------
Russel McDonald               28068906
Pete               23985688
David Antony               87681747
Jaques               71979798
Jayson Burgers               21343854
Allison Jameson               87446435

But I want the output to be:

Name               Reg No.
-------------------------------------
Russel McDonald    28068906
Pete               23985688
David Antony       87681747
Jaques             71979798
Jayson Burgers     21343854
Allison Jameson    87446435

How can this be done?

Upvotes: 4

Views: 3394

Answers (1)

Mofi
Mofi

Reputation: 49086

This batch code aligns the registration number on each output line.

@echo off
setlocal EnableDelayedExpansion
echo Name               Reg No.
echo -------------------------------------
for /f "tokens=2,3 delims=' " %%A in ('%SystemRoot%\System32\findstr.exe "Registered" registration.log') do (
    set "RegistrationName=%%A                   "
    echo !RegistrationName:~0,19!%%B
)
endlocal

I suppose that file registration.log is a tab delimited CSV file and therefore the character after delims=' is a horizontal tab character.

The method used to align registration number is appending to name 19 spaces and then output just first 19 characters from name using a substring definition.

One more version without using findstr:

@echo off
setlocal EnableDelayedExpansion
echo Name               Reg No.
echo -------------------------------------
for /f "tokens=1-3 delims=' " %%A in (registration.log) do (
    if /I "%%A" == "Registered" (
        set "RegistrationName=%%B                   "
        echo !RegistrationName:~0,19!%%C
    )
)
endlocal

For understanding the used commands and how they work, open a command prompt window, execute there the following commands, and read entirely all help pages displayed for each command very carefully.

  • echo /?
  • endlocal /?
  • findstr /?
  • for /?
  • if /?
  • set /?
  • setlocal /?

Upvotes: 4

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