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Full Discussion: How to use $variable in conditional sentences?
Top Forums Shell Programming and Scripting How to use $variable in conditional sentences? Post 302997592 by icvallejo on Wednesday 17th of May 2017 04:35:46 AM
Old 05-17-2017
How to use $variable in conditional sentences?
Hello all

I am doing a Makefile but I can't return the value of $var to use it in conditional sentences:

Code:
#!/bin/sh

GO=$(shell) go
GOPATH=$(GO) env GOPATH

make:
    @$(GOPATH)
    @if [ ! -d "$(GOPATH)/bin" ]; then mkdir -p "$(GOPATH)/bin" ; fi

When I type "make", @$GOPATH returns /home/icvallejo/go so it's ok, but after, I don't know how to use it (I can't do it) with 'if' condition, make returns this:

Code:
if [ ! -d " go env GOPATH/bin" ] ; then mkdir -p " go env GOPATH/bin" ; fi

Can you help me please?
Last edited by rbatte1; 05-17-2017 at 05:51 AM..
 

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LEARN ABOUT DEBIAN

go-remote

GO-REMOTE(7)						 Miscellaneous Information Manual					      GO-REMOTE(7)

NAME

       go - tool for managing Go source code

DESCRIPTION

       An  import path (see go-importpath(1)) denotes a package stored in the local file system.  Certain import paths also describe how to obtain
       the source code for the package using a revision control system.

       A few common code hosting sites have special syntax:

       BitBucket (Mercurial)
	      import "bitbucket.org/user/project"
	      import "bitbucket.org/user/project/sub/directory"

       GitHub (Git)
	      import "github.com/user/project"
	      import "github.com/user/project/sub/directory"

       Google Code Project Hosting (Git, Mercurial, Subversion)
	      import "code.google.com/p/project"
	      import "code.google.com/p/project/sub/directory"

	      import "code.google.com/p/project.subrepository"
	      import "code.google.com/p/project.subrepository/sub/directory"

       Launchpad (Bazaar)

	      import "launchpad.net/project"
	      import "launchpad.net/project/series"
	      import "launchpad.net/project/series/sub/directory"

	      import "launchpad.net/~user/project/branch"
	      import "launchpad.net/~user/project/branch/sub/directory"

       For code hosted on other servers, import paths may either be qualified with the version control type, or the go tool can dynamically  fetch
       the import path over https/http and discover where the code resides from a <meta> tag in the HTML.

       To declare the code location, an import path of the form

	   repository.vcs/path

       specifies  the  given  repository,  with  or without the .vcs suffix, using the named version control system, and then the path inside that
       repository.  The supported version control systems are:

       Bazaar
	       .bzr

       Git
	       .git

       Mercurial
	       .hg

       Subversion
	       .svn

       For example,

	   import "example.org/user/foo.hg"

       denotes the root directory of the Mercurial repository at example.org/user/foo or foo.hg, and

	   import "example.org/repo.git/foo/bar"

       denotes the foo/bar directory of the Git repository at example.com/repo or repo.git.

       When a version control system supports multiple protocols, each is tried in turn when downloading.   For  example,  a  Git  download  tries
       git://, then https://, then http://.

       If  the	import	path is not a known code hosting site and also lacks a version control qualifier, the go tool attempts to fetch the import
       over https/http and looks for a <meta> tag in the document's HTML <head>.

       The meta tag has the form:

	   <meta name="go-import" content="import-prefix vcs repo-root">

       The import-prefix is the import path corresponding to the repository root. It must be a prefix or an  exact  match  of  the  package  being
       fetched with "go get". If it's not an exact match, another http request is made at the prefix to verify the <meta> tags match.

       The vcs is one of "git", "hg", "svn", etc,

       The repo-root is the root of the version control system containing a scheme and not containing a .vcs qualifier.

       For example,

	   import "example.org/pkg/foo"

       will result in the following request(s):

	   https://example.org/pkg/foo?go-get=1 (preferred)
	   http://example.org/pkg/foo?go-get=1	(fallback)

       If that page contains the meta tag

	   <meta name="go-import" content="example.org git https://code.org/r/p/exproj">

       the  go	tool will verify that https://example.org/?go-get=1 contains the same meta tag and then git clone https://code.org/r/p/exproj into
       GOPATH/src/example.org.

       New downloaded packages are written to the first directory listed in the GOPATH environment variable (see go-path(1)).

       The go command attempts to download the version of the package appropriate for the Go release being used.  See go-install(1) for more.

AUTHOR

       This manual page was written by Michael Stapelberg <stapelberg@debian.org>, for the Debian project (and may be used by others).

								    2012-05-13							      GO-REMOTE(7)
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