我如何在bash循环中从文件分配这些配置变量

Question

i have a configuration file with definitions like:

[BEGIN 1]
age=16
sex=M
height=1.5
weight=20
[END 1]
...
[BEGIN 4]
age=17
sex=F
height=1.3
weight=40
[END 4]

I need to loop through these like so in another script:

worker_exec  $age  $sex  $height $weight -update | tee output.log

I was thinking if i only had one occurence in the config file i would remove the [BEGIN.. and [END.. lines and source it. But now there are multiple definitions, how would i read this file and get those definitions in bash variables and use them? I also thought to use temporary files, then it occured to me that extracting the N^(th) section is something i dont know how to do with awk

End result is i can run

for item in ...# something here i dont get, maybe also unset any previous
               # definitions in previous loop if neccessary.
do
 worker_exec  $age  $sex  $height $weight -update | tee output.log
done

Answer 1

If i understand what you want this should work.

Awk to format it Sets FS(Field Separator) to =
Sets ORS(Output Record Separator) to nothing

If it has [END on line print new line If it does have [END or [BEGIN print line with a space(notice as ORS is nothing this does not print a new line)

Then just read through the lines as they are in the correct order the full line can be passed to worker_exec as it will be resolved prior

Triple redirect is used to pass variable into a loop.

VARS=$(awk 'BEGIN {FS="=" ;ORS=""};/\[END/ {print"\n"} !/\[END/ && !/\[BEGIN/ {print $2" "}' test)


while read line; do

     worker_exec $line -update | tee output.log

done <<< "$VARS"

Hope this helps :)