On 10/17/2009 02:58 PM, Donald Russell wrote:
I'm trying to write a bash script which makes an inquiry to an http
service that replies with a series of keyword=value plain text data,
one pair per line.
I want to extract only a few of the lines, and make variables of them
available to rest of my bash script.
I have this so far, and it works fine in terms of selecting the
correct data items... but how can I get them into $1 $2, or other
symbolic names?
You can use bash variable matching. I'll suppose we know that $data is
something like:
key1=value1 key2=value2 key3=value3
where the pairs are separated by whitespace of some kind. If not, then
set IFS and make sure the pairs are separated by that.
Then:
for pair in $data; do
key=${pair%%=*};
val=${pair#*=};
...now do something with $key and $val...
done
It'll be more complicated if there's whitespace in the values, but you
get the idea.
See: http://www.linuxjournal.com/article/8919.
Richard
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