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Top Forums UNIX for Dummies Questions & Answers Listing directories and ${1:+$1/}* Post 60854 by bhargav on Monday 24th of January 2005 12:35:04 AM
Old 01-24-2005
Quote:

Q1 - What does
${1:+$1/}*
mean? I guess it lists all files in current directory - Could any one explain how this expression works?
Above expression is trying to list files (with relative path including paramter passed as first arg ) of the directory passed as argument.
If argument is not passed it lists the files/directories in the current directory.

See below ...

$ cat x.sh
echo ${1:+$1/}*

$ ./x.sh 1234
1234/subdir1 1234/subdir2 1234/subdir3 1234/subdir4 1234/subdir5

$ ls 1234
subdir1 subdir2 subdir3 subdir4 subdir5
$ ./x.sh
1234
 

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DH_INSTALL(1)							     Debhelper							     DH_INSTALL(1)

NAME
dh_install - install files into package build directories SYNOPSIS
dh_install [-Xitem] [--autodest] [--sourcedir=dir] [debhelperoptions] [file|dir...destdir] DESCRIPTION
dh_install is a debhelper program that handles installing files into package build directories. There are many dh_install* commands that handle installing specific types of files such as documentation, examples, man pages, and so on, and they should be used when possible as they often have extra intelligence for those particular tasks. dh_install, then, is useful for installing everything else, for which no particular intelligence is needed. It is a replacement for the old dh_movefiles command. This program may be used in one of two ways. If you just have a file or two that the upstream Makefile does not install for you, you can run dh_install on them to move them into place. On the other hand, maybe you have a large package that builds multiple binary packages. You can use the upstream Makefile to install it all into debian/tmp, and then use dh_install to copy directories and files from there into the proper package build directories. From debhelper compatibility level 7 on, dh_install will fall back to looking in debian/tmp for files, if it doesn't find them in the current directory (or whereever you've told it to look using --sourcedir). FILES
debian/package.install List the files to install into each package and the directory they should be installed to. The format is a set of lines, where each line lists a file or files to install, and at the end of the line tells the directory it should be installed in. The name of the files (or directories) to install should be given relative to the current directory, while the installation directory is given relative to the package build directory. You may use wildcards in the names of the files to install (in v3 mode and above). Note that if you list exactly one filename or wildcard-pattern on a line by itself, with no explicit destination, then dh_install will automatically guess the destination to use, the same as if the --autodest option were used. OPTIONS
--list-missing This option makes dh_install keep track of the files it installs, and then at the end, compare that list with the files in the source directory. If any of the files (and symlinks) in the source directory were not installed to somewhere, it will warn on stderr about that. This may be useful if you have a large package and want to make sure that you don't miss installing newly added files in new upstream releases. Note that files that are excluded from being moved via the -X option are not warned about. --fail-missing This option is like --list-missing, except if a file was missed, it will not only list the missing files, but also fail with a nonzero exit code. -Xitem, --exclude=item Exclude files that contain item anywhere in their filename from being installed. --sourcedir=dir Look in the specified directory for files to be installed. 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_install automatically looks for files in debian/tmp in debhelper compatibility level 7 and above. --autodest Guess as the destination directory to install things to. If this is specified, you should not list destination directories in debian/package.install files or on the command line. Instead, dh_install will guess as follows: Strip off debian/tmp (or the sourcedir if one is given) from the front of the filename, if it is present, and install into the dirname of the filename. So if the filename is debian/tmp/usr/bin, then that directory will be copied to debian/package/usr/. If the filename is debian/tmp/etc/passwd, it will be copied to debian/package/etc/. file|dir ... destdir Lists files (or directories) to install and where to install them to. The files will be installed into the first package dh_install acts on. LIMITATIONS
dh_install cannot rename files or directories, it can only install them with the names they already have into wherever you want in the package build tree. SEE ALSO
debhelper(7) This program is a part of debhelper. AUTHOR
Joey Hess <joeyh@debian.org> 9.20120909 2012-05-08 DH_INSTALL(1)
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