bash中的for循环可在一个命令中使用多个变量 [英] for loop in bash to get more than 1 variables to use it in one command

问题描述

我有一个文本文件，我需要从同一文本中获取2个变量，并将它们放在一个命令中，例如

I have one text file and I need to get 2 variables from the same text and put them in one command like

for i in `cat TEXT | grep -i UID | awk '{print($2)}'` && 
x in `cat TEXT | grep -i LOGICAL | awk '{print($4)}'`
do 
  echo "naviseccli -h 10.1.1.37 sancopy -create -incremental -name copy_$i -srcwwn $x -destwwn xxxxxxxxxxxxxxxxxxxxxx -verify -linkbw 2048" >> OUTPUT
done

是否有任何可能的方法来完成存储管理员操作，并且需要执行大量命令，所以我需要获取此脚本才能实现

is there any possible way to accomplish that am storage admin and need to do tons of commands so i need to get this script to do it

推荐答案

您可以使用文件描述符.此外，您的 cat ， grep ， awk 命令可以组合为单个 awk 命令:

You could make use of file descriptors. Moreover, your cat, grep, awk command could be combined into a single awk command:

exec 5< <(awk '{IGNORECASE=1}/UID/ {print $2}' TEXT)
exec 6< <(awk '{IGNORECASE=1}/LOGICAL/ {print $4}' TEXT)
while read i <&5 && read x <&6
do
  echo command $i $x         # Do something with i and x here!
done

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