CODEWITHSUNDEEP
batch-file
joshj
joshj

Reputation: 583

How do I control evaluation order?

For example, cd (echo ..) works in powershell, but how do I get it working in batch (it evaluates the echo first, and so the command is effectively cd ..)? mycommand.exe (ls -fi *.hs -exclude \"#*\" -name -r) is what I'm actually trying to convert (it sends a, completed, filtered file listing to mycommand).

Upvotes: 0

Views: 72

Answers (2)

Adam Dymitruk
Adam Dymitruk

Reputation: 129566

add the $ symbol to evaluate the commands in the parens first:

mycommand.exe $(ls -fi *.hs -exclude \"#*\" -name -r)

or 

ls -fi *.hs -exclude \"#*\" -name -r | mycommand.exe

If you want to execute the command for each item returned from your ls, you can:

ls -fi *.hs -exclude \"#*\" -name -r | %{mycommand.exe $_ }

Upvotes: 0

Joey
Joey

Reputation: 354506

setlocal enabledelayedexpansion
set LIST=
for /r %%F in (*.hs) do (
   set "FN=%%F"
   if not "!FN:~0,1!"=="#" set LIST=!LIST! "%%F"
)
mycommand.exe !LIST!

would be a rough translation.

Upvotes: 1

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