>>>>> "Robert" == Robert Thorsby <[EMAIL PROTECTED]> writes:
Robert> On 2004.12.15 10:10 Roger Barnes wrote:
>> I'm trying to think of a way that doesn't use an intermediate file,
>> not that it would be any more efficient given the whole file will
>> be re-written no matter what you do. I tried using less with
>> unlimited memory buffers (-b-1) instead of cat, but it doesn't work
>> any better, probably because of how pipes work.
Robert> Will this do:
Robert> #!/bin/bash
Robert> STATIC_FILE=`/bin/cat << "EOF" jumps over the lazy dog down by
Robert> the river side. EOF`
Robert> BASH_VAR_1="The quick" BASH_VAR_2="brown fox"
Robert> echo "$STATIC_FILE" | /bin/gawk -v i="$BASH_VAR_1" -v
Robert> j="$BASH_VAR_2" 'BEGIN { print i print j } { print ($0) }'
This just puts the bits on standard out. I thin khte ideas was to
rewrite the file once.
I'd use an ed script for this.
ed file > /dev/null <<EOF
1i
New Stuff Here
On as many lines as you want
you can even include ${SHELL_VARIABLES} if you want
.
w
q
EOF
Peter C
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