I would like redirect output to files using shell programming
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If you are executing a loop, you may be writing in multiple steps within the loop. Note that the notation for the first write will probably need to be different from the subsequent writes:
Note that you can redirect standard output to a file permanently using
Code:
exec >> file-to-append-to
so you don't need to redirect every individual command.
In your case, you can do e.g.
Code:
#!/bin/sh
# Save original standard output to descriptor 3
exec 3>&1
# Loop over each Name read from standard input:
while read Name ; do
# Redirect output to append to $Name.html
exec >> "$Name.html"
# Do normal output, it will append to $Name.html
# ...
done
# Restore standard output. This stops further output
# from going into last $Name.html, too.
exec 1>&3
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