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Full Discussion: Decode the statement!!
Operating Systems Linux Decode the statement!! Post 302593499 by itkamaraj on Friday 27th of January 2012 05:09:17 AM
Old 01-27-2012
Read about

Code:
 
man test


Code:
 
[ -z "$VAR" ]
 check the $VAR is empty or not
    -z string  True if  the  length  of  string  string is zero.
 
 [ -x "/bin/setup" ] -- if it is empty, then check whether /bin/setup is having the execute permission for that user 
 If the user has execute permission, then execute the setup file with argument 1
 If the user didnt have the execute permission, then check whether we have a directory called /tmp [ -d "/tmp/" ] and if it is there, then set the VAR variable value as /tmp
 and export it

---------- Post updated at 03:39 PM ---------- Previous update was at 03:36 PM ----------

for && ||

example is

Code:
 
if [ condition ] then
echo "True"
else
echo "False"
fi

can be write like below
Code:
 
[ condition ] && echo "True" || echo "False"

 

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GIT-VAR(1)							    Git Manual								GIT-VAR(1)

NAME
git-var - Show a Git logical variable SYNOPSIS
git var ( -l | <variable> ) DESCRIPTION
Prints a Git logical variable. OPTIONS
-l Cause the logical variables to be listed. In addition, all the variables of the Git configuration file .git/config are listed as well. (However, the configuration variables listing functionality is deprecated in favor of git config -l.) EXAMPLE
$ git var GIT_AUTHOR_IDENT Eric W. Biederman <ebiederm@lnxi.com> 1121223278 -0600 VARIABLES
GIT_AUTHOR_IDENT The author of a piece of code. GIT_COMMITTER_IDENT The person who put a piece of code into Git. GIT_EDITOR Text editor for use by Git commands. The value is meant to be interpreted by the shell when it is used. Examples: ~/bin/vi, $SOME_ENVIRONMENT_VARIABLE, "C:Program FilesVimgvim.exe" --nofork. The order of preference is the $GIT_EDITOR environment variable, then core.editor configuration, then $VISUAL, then $EDITOR, and then the default chosen at compile time, which is usually vi. GIT_PAGER Text viewer for use by Git commands (e.g., less). The value is meant to be interpreted by the shell. The order of preference is the $GIT_PAGER environment variable, then core.pager configuration, then $PAGER, and then the default chosen at compile time (usually less). SEE ALSO
git-commit-tree(1) git-tag(1) git-config(1) GIT
Part of the git(1) suite Git 1.8.5.3 01/14/2014 GIT-VAR(1)
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