bash output to file

i have the following statement

 for i in `cat i.txt`; do wine ~/run.exe $i.asc >> out.asc; done

but it keeps writing all the output to console not the fil开发者_C百科e 'out.asc'. plz can you help me to redirect the output to file rather than screen. thanks in advance!

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It might be that wine is writing to stderr, so you need to redirect that:

for i in `cat i.txt`; do wine ~/run.exe $i.asc 2>> out.asc; done

Notice the 2 in the 2>> operator, this means stderr.

---

try with redirecting stderr (2) to stdout (1)

for i in `cat i.txt`; do wine ~/run.exe $i.asc >> out.asc 2>&1; done

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Maybe you have both a standard output and erro outputs. Use >> and 2>> to redirect both output stream to your file.

for i in `cat i.txt`; do wine ~/run.exe $i.asc >> out.asc 2>> out.asc; done

You could optionally redirect sources to different files:

for i in `cat i.txt`; do wine ~/run.exe $i.asc >> out.asc 2>> err.asc; done

---

Other have answered your actual question, I'd like to show a better idiom to read the lines of a file.

Instead of

for i in `cat i.txt`; do
  : do something with $i
done

Try

while IFS= read -r line; do
  : do something with "$i"
done < i.txt