如何列出文件名到函數

Question

我有一堆文件夾，文件只能有一個網址，它即

http://itunes.apple.com/us/app/keynote/id361285480?mt=8 

這裏是我的代碼。我怎樣才能讓它爲每個文件中的每個URL執行此操作？

var='{"object":"App","action":"scrape","args":{"itunes_url":"!!!!HERE!!!!"}}'   
string=$(echo "$var" | sed -e 's/"/\\"/g') 
string='{"request":"'"$string"'"}' 
api="http://api.lewis.com" 
output=$(curl -s -d "request=$string" "$api") 

code=$(echo "$output" | tr '{', '\n' | sed -n "2p" | sed -e 's/:/ /' | awk '{print $2}') 
if [ "${code:0:1}" -ne "2" ]; then 
    # :(
    echo "Error: response code $code was returned, " 
else 
    string=$(echo "$output" | tr '{', '\n' | sed -e '/"signature":\(.*\)/d;/"data":\(.*\)/d;/"signature":\(.*\)/d;/"code":\(.*\)/d' |sed -e 's/\\"//g;s/\\\\\\\//\//g;s/\\//g' | tr '}', '\n' | sed -e 's/"//' | sed '/^$/d') 
    echo "$string" 
fi 

Answer 1

使用一個for循環

for filename in folder/*; do 
-- your code where you do something using $filename -- 
done 

OG如果你願意給文件名作爲參數到劇本：

for filename do 
-- your code where you do something using $filename -- 
done 

然後運行腳本，然後將文件

./script.sh folder/* 

Answer 2

你可以這樣做：

for file in *; do 
    for line in $(cat $file); do 
     # Stuff goes here 
    done 
done 

甚至只是：

for line in $(cat *); do 
    # Stuff goes here 
done