This is a creation in Article, where the information may have evolved or changed.
Go Installation-1.6.2
OS: Linux, 64-bit, Readhat 7.2
Pre-compiling GZ package installation using official website
1. URL https://golang.org/
Current version 1.6.2
download page https://golang.org/dl/
https://storage.googleapis.com/golang/go1.6.2.linux-amd64.tar.gz
2. Unzip
Go Requirements
ROOTdirectory in/usr/local, unzip the command:
[root@ip-172-30-0-110 home]# tar-c/usr/local-xf go1.6.2.linux-amd64.tar.gz
[root@ip-172-30-0-110 home]# ls/usr/local/
bin etc Games go include Lib lib64 libexec sbin share src
3. Modify/etc/profile Add as follows:
Export Goroot=/usr/local/go
Export path= $GOROOT/bin: $PATH
Source/etc/profile
Test
[root@ip-172-30-0-110 go]# which go
/usr/local/go/bin/go
[root@ip-172-30-0-110 go]# go version
Go version go1.6.2 linux/amd64
[root@ip-172-30-0-110 go]#
4. Running the HelloWorld program
Hello.go Content
Package Main
Import "FMT"
Func Main () {
Fmt. Printf ("Hello world!\n");
}
Compile Run
[root@ip-172-30-0-110 go]# VI hello.go
[root@ip-172-30-0-110 go]# go run hello.go
Hello world!
[root@ip-172-30-0-110 go]#
5. Compiling the Hello Project
under current directory, create a directory
[root@ip-172-30-0-110 gopath]# mkdir bin pkg src
[root@ip-172-30-0-110 gopath]# ls
bin pkg src
Place the file as follows
[root@ip-172-30-0-110 gopath]# tree.
.
├──bin
├──pkg
└──src
└──hello
└──hello.go
in the current directory, compile the Hello project
[root@ip-172-30-0-110 gopath]# export gopath= ' pwd '; go install hello
[root@ip-172-30-0-110 gopath]# tree.
.
├──bin
│└──
Hello
├──pkg
└──src
└──hello
└──hello.go
4 directories, 2 files
[root@ip-172-30-0-110 gopath]#
Run the executable file
[root@ip-172-30-0-110 gopath]# Bin/hello
Hello world!
[root@ip-172-30-0-110 gopath]#
Description:
a) Go to find a package in two places
src directory under $GOROOT, and the SRC directory under $GOPATH
An example of this error is:
[root@ip-172-30-0-110 gopath]# go install hello.go
Go install:no install location for. Go files listed in command line (GOBIN not set)
[root@ip-172-30-0-110 gopath]# go install hello
can ' t load package:package hello:cannot Find package "Hello" in any of:
/usr/local/go/src/hello (from $GOROOT)
( $GOPATH not set)
b) The name of the project can be changed,
If you change Src/hello to test, then the name of the project becomes test, such as using the Go Build command, as follows:
[root@ip-172-30-0-110 gopath]# go Build test
[root@ip-172-30-0-110 gopath]# ls-alht
Total 2.2M
drwxr-xr-x 5 root root 03:01 June 6.
-rwxr-xr-x 1 root root 2.2M June 6 03:01
test
drwxr-xr-x 2 root root 6 03:00 bin
drwxr-xr-x 3 root root 6 02:54 src
drwxr-xr-x 2 root root 6 June 6 02:43 Pkg
drwxr-xr-x. 7 root root 4.0K June 6 02:41.
[root@ip-172-30-0-110 gopath]#
directory Structure
.
├──bin
├──pkg
├──src
│└──test
│└──hello.go
└──
Test
6. Mercurial Tools
Yum Install mercurial
