while循环的输入来自`command`的输出

问题描述

#I used to have this, but I don't want to write to the disk
#
pcap="somefile.pcap"
tcpdump -n -r $pcap > all.txt
while read line; do  
  ARRAY[$c]="$line"
  c=$((c+1))  
done < all.txt  

以下内容无法正常工作.

The following fails to work.

# I would prefer something like...
#
pcap="somefile.pcap"
while read line; do  
  ARRAY[$c]="$line"
  c=$((c+1))  
done < $( tcpdump -n -r "$pcap" )

在Google上搜索的结果太少(不了解我要查找的:().我想将其保持与Bourne兼容(/bin/sh)，但它没有具有

Too few results on Google (doesn't understand what I want to find :( ). I'd like to keep it Bourne-compatible (/bin/sh), but it doesn't have to be.

推荐答案

for line in $(tcpdump -n -r $pcap)  
do  
 command  
done 

这并不能完全满足我的需求.但这很接近.与Shell兼容.我正在从tcpdump输出中创建HTML表. for循环生成一个新的< tr>.每个字排.它应为每条行(\ n结尾)创建一个新行.粘贴bin script01.sh .

This isn't exactly doing what I need. But it is close. And Shell compatible. I'm creating HTML tables from the tcpdump output. The for loop makes a new <tr> row for each word. It should make a new row for each line (\n ending).Paste bin script01.sh.

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