专业人士可以使用Bash + Escape

Question

我花了整个晚上试图完成这个过程，但我所有的尝试都以失败告终。

我写了一个非常简单的脚本，以清楚我正在尝试做什么，请复制它，并尝试启动它。

    #!/bin/bash
set -x
urls='http://bellatrix.oron.com/jrmxp36wf36yew4veg4fp53kmwlogjeecmopy3n2ja5yqkyzekxwqx2pckq6dtd5hb7duvgk/An-Beat - Mentally Insine (Original Mix).mp3'
#urls="http://bellatrix.oron.com/jrmxp36wf36yew4veg4fp53kmwlogjeecmopy3n2ja5yqkyzekxwqx2pckq6dtd5hb7duvgk/An-Beat - Mentally Insine (Original Mix).mp3"


for letsgo in `curl -OLJg  "'${urls}'"` ; do
echo "GOT TRIED OF TRYING"
done

# for letsgo in `curl -OLJg $urls` ; do
#echo "GOT TRIED OF TRYING"
# done

我启动它后得到的结果

第一个循环方式：-

./ap2.sh
+ urls='http://bellatrix.oron.com/jrmxp36wf36yew4veg4fp53kmwlogjeecmopy3n2ja5yqkyzekxwqx2pckq6dtd5hb7duvgk/An-Beat - Mentally Insine (Original Mix).mp3'
++ curl -OLJg ''\''http://bellatrix.oron.com/jrmxp36wf36yew4veg4fp53kmwlogjeecmopy3n2ja5yqkyzekxwqx2pckq6dtd5hb7duvgk/An-Beat - Mentally Insine (Original Mix).mp3'\'''

curl: (1) Protocol 'http not supported or disabled in libcurl
+ for letsgo in '`curl -OLJg  "'\''${urls}'\''"`'
+ echo 'GOT TRIED OF TRYING'
GOT TRIED OF TRYING

第二个循环

./ap2.sh
+ urls='http://bellatrix.oron.com/jrmxp36wf36yew4veg4fp53kmwlogjeecmopy3n2ja5yqkyzekxwqx2pckq6dtd5hb7duvgk/An-Beat - Mentally Insine (Original Mix).mp3'
++ curl -OLJg http://bellatrix.oron.com/jrmxp36wf36yew4veg4fp53kmwlogjeecmopy3n2ja5yqkyzekxwqx2pckq6dtd5hb7duvgk/An-Beat - Mentally Insine '(Original' 'Mix).mp3'
curl: option -: is unknown
curl: try 'curl --help' or 'curl --manual' for more information

问题是，我不知道在哪里，在没有我的许可的情况下转义url，并得到的东西可能不工作。

更新

我通过使用以下命令来摆脱它

for letsgo in `curl -OLJg  "${urls}"` ; do
echo "Working Fine But We Still Have Problem When We Are Using More Than 1 URL"
done

当脚本有多个url时的问题是，它们中的每一个都必须在引号中(仅针对我的情况)，以使curl可能工作。我可以在linux控制台中手动执行此操作，没有任何问题，但是当涉及到使用BASH脚本时，这些脚本的结果将是

#!/bin/bash
set -x
urls="'http://bellatrix.oron.com/jrmxp36wf36yew4veg4fp53kmwlogjeecmopy3n2ja5yqkyzekxwqx2pckq6dtd5hb7duvgk/An-Beat - Mentally Insine (Original Mix).mp3' -OLJg 'http://webprod15.megashares.com/index.php?d01=3109985&lccdl=9e8e091ef33dd103&d01go=1' -OLJg "



for letsgo in `curl -OLJg "${urls}"` ; do
    echo "Working Fine But We Still Have Problem When We Are Using More Than 1 URL"
done

结果：

+ urls=''\''http://bellatrix.oron.com/jrmxp36wf36yew4veg4fp53kmwlogjeecmopy3n2ja5yqkyzekxwqx2pckq6dtd5hb7duvgk/An-Beat - Mentally Insine (Original Mix).mp3'\'' -OLJg '\''http://webprod15.megashares.com/index.php?d01=3109985&lccdl=9e8e091ef33dd103&d01go=1'\'' '
++ curl -OLJg ''\''http://bellatrix.oron.com/jrmxp36wf36yew4veg4fp53kmwlogjeecmopy3n2ja5yqkyzekxwqx2pckq6dtd5hb7duvgk/An-Beat - Mentally Insine (Original Mix).mp3'\'' -OLJg '\''http://webprod15.megashares.com/index.php?d01=3109985&lccdl=9e8e091ef33dd103&d01go=1'\'' '

curl: (1) Protocol 'http not supported or disabled in libcurl
+ for letsgo in '`curl -OLJg "${urls}"`'
+ echo 'Working Fine But We Still Have Problem When We Are Using More Than 1 URL'
Working Fine But We Still Have Problem When We Are Using More Than 1 URL

我只想让它正常工作，就像我在linux控制台上输入它一样，没有bash通过转义字符串造成的中断。就像这样

curl -OLJg 'http://bellatrix.oron.com/jrmxp36wf36yew4veg4fp53kmwlogjeecmopy3n2ja5yqkyzekxwqx2pckq6dtd5hb7duvgk/An-Beat - Mentally Insine (Original Mix).mp3' -OLJg 'http://webprod15.megashares.com/index.php?d01=3109985&lccdl=9e8e091ef33dd103&d01go=1' -OLJ

Answer 1

您应该删除curl参数中的单引号-按照您编写它的方式，它们将成为URL的一部分。

Answer 2

BASH FAQ entry #50: "I'm trying to put a command in a variable, but the complex cases always fail!"

Answer 3

尝尝这个

urls="http://bellatrix.oron.com/jrmxp36wf36yew4veg4fp53kmwlogjeecmopy3n2ja5yqkyzekxwqx2pckq6dtd5hb7duvgk/An-Beat - Mentally Insine (Original Mix).mp3"
curl -OLJg  "${urls}" | while read results
do
 ...
done