从文本文件加载列表到 Bash 脚本
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Load List From Text File To Bash Script
提问by Simply_me
I've a .txtfile which contains
我有一个.txt文件，其中包含
abc.com
google.com
....
....
yahoo.com
And I'm interested in loading it to a bash script as a list (i.e. Domain_List=( "abc.com" "google.com" .... "yahoo.com")). Is it possible to do?
我有兴趣将它作为列表（即Domain_List=( "abc.com" "google.com" .... "yahoo.com")）加载到 bash 脚本中。有可能吗？
Additional information, once the list is obtained it is used in a forloop and ifstatements.
附加信息，一旦获得列表，它就会在for循环和if语句中使用。
for i in "${Domain_list[@]}
do
if grep -q "${Domain_list[counter]}" domains.log
....
....
fi
....
let counter=counter+1
done
Thank you,
谢谢，
Update:
I've changed the format to Domain_list=( "google.com .... "yahoo.com" ), and using source Doamin.txtallows me to use Domain_listas a list in the bash script.
更新：我已将格式更改为 Domain_list=( "google.com .... "yahoo.com" )，并且 usingsource Doamin.txt允许我Domain_list在 bash 脚本中用作列表。
#!/bin/bash
counter=0
source domain.txt
for i in "${domain_list[@]}"
do
echo "${domain_list[counter]}"
let counter=counter+1
done
echo "$counter"
回答by Tanmoy Bandyopadhyay
Suppose, your datafile name is web.txt. Using command substitution (backtics) and cat, the array can be built. Pl. see the following code,
假设您的数据文件名为 web.txt。使用命令替换 (backtics) 和 cat，可以构建数组。PL。看下面的代码，
myarray=(`cat web.txt`)
noofelements=${#myarray[*]}
#now traverse the array
counter=0
while [ $counter -lt $noofelements ]
do
echo " Element $counter is ${myarray[$counter]}"
counter=$(( $counter + 1 ))
done
回答by Simply_me
I used the source command, and it works fine.
我使用了 source 命令，它工作正常。
#!/bin/bash
counter=0
source domain.txt
for i in "${domain_list[@]}"
do
echo "${domain_list[counter]}"
let counter=counter+1
done
echo "$counter"
回答by Dolphiniac
Domain_list=()
while read addr
do
Domain_list+=($addr)
done < addresses.txt
That should store each line of the text file into the array.
这应该将文本文件的每一行存储到数组中。
回答by masterccioli
There's no need for a counter if we're sourcing the list from a file. You can simply iterate through the list and echo the value.
如果我们从文件中获取列表，则不需要计数器。您可以简单地遍历列表并回显该值。
#!/bin/bash
source domain.txt
for i in ${domain_list[@]}
do
echo $i
done
