我正在尝试在终端上执行一长串重复命令。
命令如下所示:
wget 'http://api.tiles.mapbox.com/v3/localstarlight.hl2o31b8/-180,52,9/1280x1280.png' -O '/Volumes/Alaya/XXXXXXXXX/Downloads/MapTiles/Tile (52.-180) 0.png' \
wget 'http://api.tiles.mapbox.com/v3/localstarlight.hl2o31b8/-177,52,9/1280x1280.png' -O '/Volumes/Alaya/XXXXXXXXX/Downloads/MapTiles/Tile (52.-177) 1.png' \
如果我将整个列表复制到终端中,它会执行所有这些,但似乎是在如此匆忙中这样做,有些只是部分下载,有些完全错过了。它似乎没有一个接一个地等待它们等到每个完成之后才尝试下一个。
我尝试将整个列表放入shell脚本并运行它,但由于某种原因它似乎下载了所有内容,但只生成一个文件,并查看输出,它似乎试图保存每个文件相同的文件名:
2014-03-29 09:56:31 (4.15 MB/s) - `/Volumes/Alaya/XXXXXXXX/Downloads/MapTiles/Tile (52.180) 120.png' saved [28319/28319]
--2014-03-29 09:56:31-- http://%20%0Dwget/
Resolving \rwget... failed: nodename nor servname provided, or not known.
wget: unable to resolve host address ` \rwget'
--2014-03-29 09:56:31-- http://api.tiles.mapbox.com/v3/localstarlight.hl2o31b8/171,52,9/1280x1280.png
Reusing existing connection to api.tiles.mapbox.com:80.
HTTP request sent, awaiting response... 200 OK
Length: 33530 (33K) [image/jpeg]
Saving to: `/Volumes/Alaya/XXXXXXXX/Downloads/MapTiles/Tile (52.180) 120.png'
100%[======================================>] 33,530 --.-K/s in 0.008s
2014-03-29 09:56:31 (3.90 MB/s) - `/Volumes/Alaya/XXXXXXXX/Downloads/MapTiles/Tile (52.180) 120.png' saved [33530/33530]
--2014-03-29 09:56:31-- http://%20%0Dwget/
Resolving \rwget... failed: nodename nor servname provided, or not known.
wget: unable to resolve host address ` \rwget'
--2014-03-29 09:56:31-- http://api.tiles.mapbox.com/v3/localstarlight.hl2o31b8/174,52,9/1280x1280.png
Reusing existing connection to api.tiles.mapbox.com:80.
HTTP request sent, awaiting response... 200 OK
Length: 48906 (48K) [image/jpeg]
Saving to: `/Volumes/Alaya/XXXXXXXX/Downloads/MapTiles/Tile (52.180) 120.png'
100%[======================================>] 48,906 --.-K/s in 0.01s
2014-03-29 09:56:31 (4.88 MB/s) - `/Volumes/Alaya/XXXXXXXX/Downloads/MapTiles/Tile (52.180) 120.png' saved [48906/48906]
--2014-03-29 09:56:31-- http://%20%0Dwget/
Resolving \rwget... failed: nodename nor servname provided, or not known.
wget: unable to resolve host address ` \rwget'
--2014-03-29 09:56:31-- http://api.tiles.mapbox.com/v3/localstarlight.hl2o31b8/177,52,9/1280x1280.png
Reusing existing connection to api.tiles.mapbox.com:80.
HTTP request sent, awaiting response... 200 OK
Length: 45644 (45K) [image/jpeg]
Saving to: `/Volumes/Alaya/XXXXXXXX/Downloads/MapTiles/Tile (52.180) 120.png'
100%[======================================>] 45,644 --.-K/s in 0.01s
2014-03-29 09:56:31 (4.36 MB/s) - `/Volumes/Alaya/XXXXXXXX/Downloads/MapTiles/Tile (52.180) 120.png' saved [45644/45644]
所以它将每个文件保存为此名称: Tile(52.180)120.png
请注意,如果我单独输入每个命令,它就不会这样做...所以我不明白为什么会这样做。
有人能告诉我如何执行这个命令列表,以便它能正确执行每个命令吗?
谢谢!
答案 0 :(得分:2)
您的文件应如下所示:
#!/bin/bash
wget -q 'http://api.tiles.mapbox.com/v3/localstarlight.hl2o31b8/-180,52,9/1280x1280.png' -O 'a.png'
wget -q 'http://api.tiles.mapbox.com/v3/localstarlight.hl2o31b8/-177,52,9/1280x1280.png' -O 'b.png'
但是......你在每条wget
行的末尾都有一个反斜杠,这是长行的延续字符,你不需要它。删除它。
基本上你要求wget获取一个文件,然后是另一个名为wget的文件,然后是另一个文件,然后是另一个文件。您的脚本只执行一个wget
- 第一个。由于连续字符,所有其他wget
命令都被视为第一个wget
的参数。
你这样做:
wget URL file wget URL file wget URL file
答案 1 :(得分:1)
从您发布的日志中引用:
http://%20%0Dwget/
这表明您的脚本包含 CR + LF 行结尾。在执行脚本之前删除它们:
sed $'s/\r//' scriptname
或
tr -d '\r' < scriptname