12-01-2011
Bash shell script: Str(007) to int(7),increment it(8) & convert back to string(008)
Hi,
I have the following requirement.
There will be following text/line in a file (eg: search-build.txt)
PRODUCT_VERSION="V:01.002.007.Build1234"
I need to update the incremental build number (eg here 007) every time I give a build through script. I am able to search the string and get the item.
Quote:
rexpression_sed='PRODUCT_VERSION=\"V:\([0-9]*\).\([0-9]*\).\([0-9]*\).Build\([0-9]*\)\"'
var2=`grep -sn $rexpression_sed search-build.txt | sed -e 's/'$rexpression_sed'/\1\t\2\t\3\t\4/g'| cut -f 3`
echo $var2
Output
007
How to convert this to integer (7), add 1 to it (8) and again get back in the same form (008) in the easiest way? I will be using sed -i on the file, with this new string that can be used with RE for replacing that part!
Or
Is there any better method than above.
Thanks for any help.
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create_makefiles
CREATE_MAKEFILES() CREATE_MAKEFILES()
NAME
create_makefiles - Recreates all Makefiles beneath a directory
SYNOPSIS
create_makefiles [dir]
DESCRIPTION
create_makefiles recreates all Makefiles in dir and its (recursed) subdirectories from the corresponding Makefile.am templates.
This script must be run from the toplevel directory (the one containing configure). This script saves time compared to re-running configure
completely.
If the source directory is different from the build directory (see the environment variables below), it will be assumed that each
Makefile.am and Makefile.in belongs beneath the source directory and that each Makefile belongs beneath the build directory.
This utility is part of the KDE Software Development Kit.
ENVIRONMENT
One of the following variables (but not both) should be set if the source directory is different from the build directory. If the build
directory is simply a subdirectory of the source directory, the simpler variable OBJ_SUBDIR should be used.
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SEE ALSO
create_makefile(1) make(2)
AUTHORS
create_makefiles was written by David Faure<faure@kde.org>.
This manual page was prepared by Ben Burton<bab@debian.org> for the Debian GNU/Linux system (but may be used by others).
CREATE_MAKEFILES()