bash output to file

Question

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 file 'out.asc'. plz can you help me to redirect the output to file rather than screen. thanks in advance!

Answer 1

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.

Answer 2

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

Answer 3

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

Answer 4

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