捲曲不良網址 (3)

我遍歷一個文件，我想用 URL 中的行（單詞）來捲曲一個 api。

的內容list2csv.sh是：

#!/bin/bash

for word in $( cat $1 )
do
   echo "https://api.dictionaryapi.dev/api/v2/entries/en/$word" 
   curl "http://api.dictionaryapi.dev/api/v2/entries/en/$word" 
done

文件內容list：

timber
clatter

當我執行./list2csv.sh list輸出是：

https://api.dictionaryapi.dev/api/v2/entries/en/timber
curl: (3) URL using bad/illegal format or missing URL
https://api.dictionaryapi.dev/api/v2/entries/en/clatter
curl: (3) URL using bad/illegal format or missing URL

如果我嘗試捲曲回顯的 URL，我會得到：

$ curl https://api.dictionaryapi.dev/api/v2/entries/en/timber
[{"word":"timber","phonetic":"ˈtɪmbə","phonetics":[{"text":"ˈtɪmbə","audio":"//ssl.gstatic.com/dictionary/static/sounds/20200429/timber--_gb_1.mp3"}],"origin":"Old English in the sense ‘a building’, also ‘building material’, of Germanic origin; related to German Zimmer ‘room’, from an Indo-European root meaning ‘build’.","meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"wood prepared for use in building and carpentry.","example":"the exploitation of forests for timber","synonyms":["wood","logs","firewood","planks","wood products","forest","woodland","woods","lumber"],"antonyms":[]},{"definition":"personal qualities or character.","example":"she is frequently hailed as presidential timber","synonyms":[],"antonyms":[]}]}]}]%

$ curl https://api.dictionaryapi.dev/api/v2/entries/en/clatter
[{"word":"clatter","phonetic":"ˈklatə","phonetics":[{"text":"ˈklatə","audio":"//ssl.gstatic.com/dictionary/static/sounds/20200429/clatter--_gb_1.mp3"}],"origin":"Old English (as a verb), of imitative origin.","meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"a continuous rattling sound as of hard objects falling or striking each other.","example":"the horse spun round with a clatter of hooves","synonyms":[],"antonyms":[]}]},{"partOfSpeech":"verb","definitions":[{"definition":"make or cause to make a continuous rattling sound.","example":"her coffee cup clattered in the saucer","synonyms":["rattle","clank","clink","clunk","clang","bang","blatter"],"antonyms":[]}]}]}]%

我使用 macOS，但我也嘗試過其他作業系統。

您的輸入文件是一個 DOS 文本文件。它在每行的末尾包含一個額外的輸入字元，這些字元正在成為word變數值的一部分，這會引發以下特定錯誤curl：

$ curl $'http://localhost/somepath\r'
curl: (3) URL using bad/illegal format or missing URL

最後沒有輸入，我得到了預期的錯誤（這台機器上沒有執行網路伺服器）：

$ curl 'http://localhost/somepath'
curl: (7) Failed to connect to localhost port 80 after 0 ms: Connection refused

考慮使案例如將輸入文件轉換為 Unix 文本文件dos2unix。

您的程式碼中還存在一些問題，即您強制 shell 一次性讀取整個輸入文件，將文件內容拆分為空格、製表符和換行符，並對生成的單詞執行文件名通配。此外，您以相同的方式拆分命令行上給出的路徑名。

使用while循環一次讀取一個單詞會更安全：

#!/bin/sh

cat -- "$@" |
while IFS= read -r word; do
   curl "https://api.dictionaryapi.dev/api/v2/entries/en/$word"
done

或者，使用xargs，

#!/bin/sh

cat -- "$@" |
xargs -t -I {} \
   curl 'https://api.dictionaryapi.dev/api/v2/entries/en/{}'

上述兩個腳本都將命令行上作為參數給出的所有文件連接起來，並將輸出傳遞給curl，一次一行。

請注意，我還在您的 URL 中將 HTTP 更正為 HTTPS。使用 HTTP，您將被遠端服務重定向到 HTTPS 站點，這需要您使用-Lwithcurl來自動跟隨。

引用自：https://unix.stackexchange.com/questions/687738