Contents
- curl介绍
- curl安装步骤
- curl测试效果
- curl 帮助文档
curl介绍
curl是利用URL语法在命令行方式下工作的开源文件传输工具。它被广泛应用在Unix、多种Linux发行版中,并且有DOS和Win32、Win64下的移植版本。
curl是一款著名的字符界面下的下载工具,支持HTTP、HTTPS、FTP、FTPS、DICT、TELNET、LDAP、FILE,和GOPHER。此外还具有cookies支持、断点续传、FTP上传、密码支持、SSL支持和代理支持等特性。curl同时还提供了一套libcurl的库,开发者可以基于这个库开发其他下载工具。
官网地址:https://curl.haxx.se/
官网文档:https://curl.haxx.se/docs/
官网下载地址:https://curl.haxx.se/download.html
curl安装步骤
1.获得安装包,从网上直接下载或者其他途径,这里直接wget
#
wget
https
:
//curl.haxx.se/download/curl-7.54.0.tar.gz
|
2.解压到当前目录
1
|
#
tar
-
zxf
curl
-
7.54.0.tar.gz
|
3.进入解压后的目录内
1
|
#
cd
curl
-
7.17.1
|
4.安装与配置
1
2
3
4
|
.
/
configure
make
make
test
(
optional
)
make
install
|
详细可以参考官方安装文档:https://curl.haxx.se/docs/install.html
curl测试效果
测试版本:curl –version
发送一个get请求: curl http://www.netscape.com/
详细可以参考官方测试例子文档:https://curl.haxx.se/docs/manual.html
当然也可以通过centos中的 curl –manual 来获取使用例子。
curl 帮助文档
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|
Options
:
(
H
)
means
HTTP
/
HTTPS
only
,
(
F
)
means
FTP
only
--
anyauth
Pick
"any"
authentication
method
(
H
)
-
a
/
--
append
上传文件时,附加到目标文件
(
F
/
SFTP
)
--
basic
使用
HTTP基本验证
(
H
)
--
cacert
<
file
>
CA
certificate
to
verify
peer
against
(
SSL
)
--
capath
<
directory
>
CA
directory
to
verify
peer
against
(
SSL
)
-
E
/
--
cert
<
cert
[
:
passwd
]
>
Client
certificate
file
and
password
(
SSL
)
--
cert
-
type
<
type
>
Certificate
file
type
(
DER
/
PEM
/
ENG
)
(
SSL
)
--
ciphers
<
list
>
SSL
ciphers
to
use
(
SSL
)
--
compressed
Request
compressed
response
(
using
deflate
or
gzip
)
-
K
/
--
config
<
file
>
Specify
which
config
file
to
read
--
connect
-
timeout
<
seconds
>
Maximum
time
allowed
for
connection
-
C
/
--
continue
-
at
<
offset
>
Resumed
transfer
offset
-
b
/
--
cookie
<
name
=
string
/
file
>
cookie字符串或文件读取位置
(
H
)
-
c
/
--
cookie
-
jar
<
file
>
Write
cookies
to
this
file
after
operation
(
H
)
--
create
-
dirs
Create
necessary
local
directory
hierarchy
--
crlf
Convert
LF
to
CRLF
in
upload
--
crlfile
<
file
>
Get
a
CRL
list
in
PEM
format
from
the
given
file
-
d
/
--
data
<
data
>
HTTP
POST方式传送数据
(
H
)
--
data
-
ascii
<
data
>
以
ascii的方式
post数据
(
H
)
--
data
-
binary
<
data
>
以二进制的方式
post数据
(
H
)
--
data
-
urlencode
<
name
=
data
/
name
@filename
>
HTTP
POST
data
url
encoded
(
H
)
--
delegation
STRING
GSS
-
API
delegation
permission
--
digest
使用数字身份验证
(
H
)
--
disable
-
eprt
禁止使用
EPRT或
LPRT
(
F
)
--
disable
-
epsv
禁止使用
EPSV
(
F
)
-
D
/
--
dump
-
header
<
file
>
把
header信息写入到该文件中
--
egd
-
file
<
file
>
为随机数据
(
SSL
)设置
EGD
socket路径
(
SSL
)
--
engine
<
eng
>
Crypto
engine
to
use
(
SSL
)
.
"--engine list"
for
list
-
f
/
--
fail
连接失败时不显示
http错误
(
H
)
-
F
/
--
form
<
name
=
content
>
模拟
http表单提交数据
(
H
)
--
form
-
string
<
name
=
string
>
模拟
http表单提交数据
(
H
)
--
ftp
-
account
<
data
>
Account
data
to
send
when
requested
by
server
(
F
)
--
ftp
-
alternative
-
to
-
user
<
cmd
>
String
to
replace
"USER [name]"
(
F
)
--
ftp
-
create
-
dirs
如果远程目录不存在,创建远程目录
(
F
)
--
ftp
-
method
[
multicwd
/
nocwd
/
singlecwd
]
控制
CWD的使用
(
F
)
--
ftp
-
pasv
使用
PASV
/
EPSV
代替端口
(
F
)
-
P
/
--
ftp
-
port
<
address
>
Use
PORT
with
address
instead
of
PASV
(
F
)
--
ftp
-
skip
-
pasv
-
ip
使用
PASV的时候
,忽略该
IP地址
(
F
)
--
ftp
-
ssl
尝试用
SSL
/
TLS
来进行
ftp数据传输
(
F
)
--
ftp
-
ssl
-
ccc
Send
CCC
after
authenticating
(
F
)
--
ftp
-
ssl
-
ccc
-
mode
[
active
/
passive
]
Set
CCC
mode
(
F
)
--
ftp
-
ssl
-
control
Require
SSL
/
TLS
for
ftp
login
,
clear
for
transfer
(
F
)
--
ftp
-
ssl
-
reqd
Require
SSL
/
TLS
for
ftp
transfer
(
F
)
-
G
/
--
get
以
get的方式来发送数据
(
H
)
-
g
/
--
globoff
禁用网址序列和范围使用
{
}和
[
]
{
}
and
[
]
-
H
/
--
header
<
line
>
自定义头信息传递给服务器
(
H
)
-
I
/
--
head
Show
document
info
only
-
h
/
--
help
帮助
--
hostpubmd5
<
md5
>
Hex
encoded
MD5
string
of
the
host
public
key
.
(
SSH
)
-
0
/
--
http1
.
0
Use
HTTP
1.0
(
H
)
--
ignore
-
content
-
length
忽略的
HTTP头信息的长度
-
i
/
--
include
输出时包括
protocol头信息
(
H
/
F
)
-
k
/
--
insecure
Allow
connections
to
SSL
sites
without
certs
(
H
)
--
interface
<
interface
>
Specify
network
interface
/
address
to
use
-
4
/
--
ipv4
Resolve
name
to
IPv4
address
-
6
/
--
ipv6
Resolve
name
to
IPv6
address
-
j
/
--
junk
-
session
-
cookies
Ignore
session
cookies
read
from
file
(
H
)
--
keepalive
-
time
<
seconds
>
Interval
between
keepalive
probes
--
key
<
key
>
Private
key
file
name
(
SSL
/
SSH
)
--
key
-
type
<
type
>
Private
key
file
type
(
DER
/
PEM
/
ENG
)
(
SSL
)
--
krb
<
level
>
Enable
Kerberos
with
specified
security
level
(
F
)
--
libcurl
<
file
>
Dump
libcurl
equivalent
code
of
this
command
line
--
limit
-
rate
<
rate
>
Limit
transfer
speed
to
this
rate
-
l
/
--
list
-
only
List
only
names
of
an
FTP
directory
(
F
)
--
local
-
port
<
num
>
[
-
num
]
Force
use
of
these
local
port
numbers
-
L
/
--
location
Follow
Location
:
hints
(
H
)
--
location
-
trusted
Follow
Location
:
and
send
auth
to
other
hosts
(
H
)
-
M
/
--
manual
Display
the
full
manual
--
max
-
filesize
<
bytes
>
Maximum
file
size
to
download
(
H
/
F
)
--
max
-
redirs
<
num
>
Maximum
number
of
redirects
allowed
(
H
)
-
m
/
--
max
-
time
<
seconds
>
Maximum
time
allowed
for
the
transfer
--
negotiate
Use
HTTP
Negotiate
Authentication
(
H
)
-
n
/
--
netrc
Must
read
.
netrc
for
user
name
and
password
--
netrc
-
optional
Use
either
.
netrc
or
URL
;
overrides
-
n
-
N
/
--
no
-
buffer
Disable
buffering
of
the
output
stream
--
no
-
keepalive
Disable
keepalive
use
on
the
connection
--
no
-
sessionid
Disable
SSL
session
-
ID
reusing
(
SSL
)
--
noproxy
Comma
-
separated
list
of
hosts
which
do
not
use
proxy
--
ntlm
Use
HTTP
NTLM
authentication
(
H
)
-
o
/
--
output
<
file
>
Write
output
to
<
file
>
instead
of
stdout
--
pass
<
pass
>
Pass
phrase
for
the
private
key
(
SSL
/
SSH
)
--
post301
Do
not
switch
to
GET
after
following
a
301
redirect
(
H
)
--
post302
Do
not
switch
to
GET
after
following
a
302
redirect
(
H
)
-
#
/
--
progress
-
bar
Display
transfer
progress
as
a
progress
bar
-
x
/
--
proxy
<
host
[
:
port
]
>
Use
HTTP
proxy
on
given
port
--
proxy
-
anyauth
Pick
"any"
proxy
authentication
method
(
H
)
--
proxy
-
basic
Use
Basic
authentication
on
the
proxy
(
H
)
--
proxy
-
digest
Use
Digest
authentication
on
the
proxy
(
H
)
--
proxy
-
negotiate
Use
Negotiate
authentication
on
the
proxy
(
H
)
--
proxy
-
ntlm
Use
NTLM
authentication
on
the
proxy
(
H
)
-
U
/
--
proxy
-
user
<
user
[
:
password
]
>
Set
proxy
user
and
password
--
proxy1
.
0
<
host
[
:
port
]
>
Use
HTTP
/
1.0
proxy
on
given
port
-
p
/
--
proxytunnel
Operate
through
a
HTTP
proxy
tunnel
(
using
CONNECT
)
--
pubkey
<
key
>
Public
key
file
name
(
SSH
)
-
Q
/
--
quote
<
cmd
>
Send
command
(
s
)
to
server
before
file
transfer
(
F
/
SFTP
)
--
random
-
file
<
file
>
File
for
reading
random
data
from
(
SSL
)
-
r
/
--
range
<
range
>
Retrieve
only
the
bytes
within
a
range
--
raw
Pass
HTTP
"raw"
,
without
any
transfer
decoding
(
H
)
-
e
/
--
referer
Referer
URL
(
H
)
-
O
/
--
remote
-
name
Write
output
to
a
file
named
as
the
remote
file
--
remote
-
name
-
all
Use
the
remote
file
name
for
all
URLs
-
R
/
--
remote
-
time
在本地生成文件时,保留远程文件时间
-
X
/
--
request
<
command
>
Specify
request
command
to
use
--
retry
<
num
>
传输出现问题时,重试的次数
--
retry
-
delay
<
seconds
>
传输出现问题时,设置重试间隔时间
--
retry
-
max
-
time
<
seconds
>
传输出现问题时,设置最大重试时间
period
-
S
/
--
show
-
error
显示错误
-
s
/
--
silent
不输出任何东西
--
socks4
<
host
[
:
port
]
>
SOCKS4
proxy
on
given
host
+
port
--
socks4a
<
host
[
:
port
]
>
SOCKS4a
proxy
on
given
host
+
port
--
socks5
<
host
[
:
port
]
>
SOCKS5
proxy
on
given
host
+
port
--
socks5
-
hostname
<
host
[
:
port
]
>
SOCKS5
proxy
,
pass
host
name
to
proxy
--
socks5
-
gssapi
-
service
<
name
>
SOCKS5
proxy
service
name
for
gssapi
--
socks5
-
gssapi
-
nec
Compatibility
with
NEC
SOCKS5
server
-
Y
/
--
speed
-
limit
停止传输速度的限制,速度时间'秒
-
y
/
--
speed
-
time
放弃限速所要的时间。默认为
30
Defaults
to
30
-
2
/
--
sslv2
Use
SSLv2
(
SSL
)
-
3
/
--
sslv3
Use
SSLv3
(
SSL
)
--
stderr
<
file
>
Where
to
redirect
stderr
.
-
means
stdout
--
tcp
-
nodelay
Use
the
TCP_NODELAY
option
-
t
/
--
telnet
-
option
<
OPT
=
val
>
Set
telnet
option
-
z
/
--
time
-
cond
<
time
>
传送时间设置
-
1
/
--
tlsv1
Use
=
>
TLSv1
(
SSL
)
--
tlsv1
.
0
Use
TLSv1
.
0
(
SSL
)
--
tlsv1
.
1
Use
TLSv1
.
1
(
SSL
)
--
tlsv1
.
2
Use
TLSv1
.
2
(
SSL
)
--
trace
<
file
>
Write
a
debug
trace
to
the
given
file
--
trace
-
ascii
<
file
>
Like
--
trace
but
without
the
hex
output
--
trace
-
time
Add
time
stamps
to
trace
/
verbose
output
-
T
/
--
upload
-
file
<
file
>
Transfer
<
file
>
to
remote
site
--
url
<
URL
>
Set
URL
to
work
with
-
B
/
--
use
-
ascii
Use
ASCII
/
text
transfer
-
u
/
--
user
<
user
[
:
password
]
>
Set
server
user
and
password
-
A
/
--
user
-
agent
<
string
>
User
-
Agent
to
send
to
server
(
H
)
-
v
/
--
verbose
Make
the
operation
more
talkative
-
V
/
--
version
Show
version
number
and
quit
-
w
/
--
write
-
out
<
format
>
What
to
output
after
completion
-
q
If
used
as
the
first
parameter
disables
.
curlrc
|
查看天气
首先,打开 Linux 终端或者 Linux 子系统,先来检查一下有没有安装 cURL,输入which curl
,如果有返回信息,比如/usr/bin/curl
,表示 cURL 已经安装,如果没有返回信息,可以使用sudo apt-get update;sudo apt-get install curl # 仅适用于 Debian/Ubuntu
来进行安装。
cURL 准备好以后,就可以来获取天气了,简单来说就是用 cURL 把一个网站的天气信息传回本地,这个网站就是:wttr.in。
我们可以先试一下获取,输入curl wttr.in
,是不是跟网站一模一样,可是输出的都是英文,而且位置有时候也会判断错误,可以通过参数来指定位置和语言。
curl -H "Accept-Language: 语言" wttr.in/地名
,这个地名可以是很多种,可以是城市名称,如:Beijing(北京);机场代码,如:PEK(北京首都国际机场);域名所在位置,如:@mivm.cn(浙江杭州);GPS 坐标,如:-39.9087191,116.3952003(天安门),还有两个,任意位置和区号,不过那个在国内不好用,所以就不说了,至于语言,目前支持的语言:az be bg bs ca cy cs da de el eo es et fi fr hi hr hu hy is it ja jv ka kk ko ky lv mk ml nl nn pt pl ro ru sk sl sr sr-lat sv sw th tr uk uz vi zh zu
,比如我在郑州,输入curl -H "Accept-Language: zh" wttr.in/ZhengZhou
默认获取3天的天气,最多只能获取3天,那么只想获取当天或者1天的天气怎么办呢,继续加参数啊。curl -H "Accept-Language: 语言" wttr.in/地名?天数#
,天数可以指定为:0、1、2,0 表示当前天气,1 表示当前天气 + 1天天气,2 表示当前天气 + 2天天气,比如curl -H "Accept-Language: zh" wttr.in/ZhengZhou?1#
,这个其实是个查看选项,可以使用其他查看选项来更改样式,n:输出显示为窄版;q:不显示“天气预报”字样;Q:不显示“天气预报”和城市名称;T:不显示颜色,这些参数可以配合起来使用,比如curl -H "Accept-Language: zh" wttr.in/ZhengZhou?1T#
查看月相
这个网站不仅可以查询天气,还可以查看月相,至于月相是什么鬼,我也不太清楚,反正能装X就对了。
输入curl wttr.in/moon
即可查看月相,可以指定日期来查看,比如curl wttr.in/moon@2016-10-25
以后如果有人问你你那里的天气怎么样,你就可以用这种方法来获取天气,然后截图装X,哈哈哈。