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Full Discussion: search for difference and find the above line
Top Forums Shell Programming and Scripting search for difference and find the above line Post 302488777 by posner on Tuesday 18th of January 2011 11:18:03 AM
Old 01-18-2011
search for difference and find the above line
hello All,

i have to two files package.today and package.yesterday , the extension of the files says what day the file belongs to .
contents of the file change little bit everyday .

i am taking only the package and sub package from the files
Code:
awk '/^[0-9+]/{print $0}' Packages.today
82                   
83                   
84                   
85                   
86                   
+--- 21
+--- 82
87                   
88                   
89                   
90                   
900                  
901                  
903                  
904                  
905                  
909                  
91                   
+--- 11
+--- PREVIEW PACKAGE
92                   
93                   
94                   
95                   
950                  
96                   
97                   
98                   
+--- 11
99

Code:
awk '/^[0-9+]/{print $0}' Packages.yesterday
82                   
83                   
84                   
85                   
86                   
+--- 21
+--- 82
87                   
88                   
89                   
90                   
900                  
901                  
903                  
904                  
905                  
909                  
91                   
+--- 11
92                   
93                   
94                   
95                   
950                  
96                   
97                   
98                   
+--- 11
99

The main package starts from the line begining and sub package begins with +--- , both the package names can be number and char


the difference between yesterdays and todays package list is
Code:
diff tmp.today tmp.yesterday | grep +--- | sed 's/<//g;s/+---//g;s/^ *//g'
PREVIEW PACKAGE

so "preview package" is a new sub package added in under the main package 91

i want to know the number what main package is the new sub package added ( here its is 91)

i may be following a longer path using diff command , all i want to know the main package number the sub package added,
 

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LEARN ABOUT NETBSD

dh_installexamples

DH_INSTALLEXAMPLES(1)                                                Debhelper                                               DH_INSTALLEXAMPLES(1)

NAME

       dh_installexamples - install example files into package build directories

SYNOPSIS

       dh_installexamples [debhelperoptions] [-A] [-Xitem] [file...]

DESCRIPTION

       dh_installexamples is a debhelper program that is responsible for installing examples into usr/share/doc/package/examples in package build
       directories.

       From debhelper compatibility level 11 on, dh_install will fall back to looking in debian/tmp for files, if it does not find them in the
       current directory (or wherever you've told it to look using --sourcedir).

FILES

       debian/package.examples
           Lists example files or directories to be installed.

OPTIONS

       -A, --all
           Install any files specified by command line parameters in ALL packages acted on.

       --sourcedir=dir
           Look in the specified directory for files to be installed.  This option requires compat 11 or later (it is silently ignored in compat
           10 or earlier).

           Note that this is not the same as the --sourcedirectory option used by the dh_auto_* commands. You rarely need to use this option,
           since dh_installexamples automatically looks for files in debian/tmp in debhelper compatibility level 11 and above.

       --doc-main-package=main-package
           Set the main package for a documentation package.  This is used to install the documentation of the documentation package in
           /usr/share/doc/main-package as recommended by the Debian policy manual 3.9.7 in S12.3.

           In compat 11 (or later), this option is only useful if debhelper's auto-detection of the main package is wrong.  The option can also be
           used to silence a warning from debhelper when the auto-detection fails but the default happens to be correct.

           This option cannot be used when dh_installexamples is instructed to act on multiple packages.  If you need this option, you will
           generally need to combine it with -p to ensure exactly one package is acted on.

       -Xitem, --exclude=item
           Exclude files that contain item anywhere in their filename from being installed.

       file ...
           Install these files (or directories) as examples into the first package acted on. (Or into all packages if -A is specified.)

NOTES

       Note that dh_installexamples will happily copy entire directory hierarchies if you ask it to (similar to cp -a). If it is asked to install
       a directory, it will install the complete contents of the directory.

SEE ALSO

       debhelper(7)

       This program is a part of debhelper.

AUTHOR

       Joey Hess <joeyh@debian.org>

11.1.6ubuntu2                                                       2018-05-10                                               DH_INSTALLEXAMPLES(1)
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