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Full Discussion: UNIX; Compare two files
Top Forums UNIX for Advanced & Expert Users UNIX; Compare two files Post 302144214 by porter on Tuesday 6th of November 2007 05:52:35 PM
Old 11-06-2007
Code:
#!/bin/sh

if diff fileOne fileTwo
then
       echo same
else
       echo different
fi

 
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SYSTEMD-DELTA(1)						   systemd-delta						  SYSTEMD-DELTA(1)

NAME
systemd-delta - Find overridden configuration files SYNOPSIS
systemd-delta [OPTIONS...] [PREFIX[/SUFFIX]|SUFFIX...] DESCRIPTION
systemd-delta may be used to identify and compare configuration files that override other configuration files. Files in /etc have highest priority, files in /run have the second highest priority, ..., files in /usr/lib have lowest priority. Files in a directory with higher priority override files with the same name in directories of lower priority. In addition, certain configuration files can have ".d" directories which contain "drop-in" files with configuration snippets which augment the main configuration file. "Drop-in" files can be overridden in the same way by placing files with the same name in a directory of higher priority (except that, in case of "drop-in" files, both the "drop-in" file name and the name of the containing directory, which corresponds to the name of the main configuration file, must match). For a fuller explanation, see systemd.unit(5). The command line argument will be split into a prefix and a suffix. Either is optional. The prefix must be one of the directories containing configuration files (/etc, /run, /lib, ...). If it is given, only overriding files contained in this directory will be shown. Otherwise, all overriding files will be shown. The suffix must be a name of a subdirectory containing configuration files like tmpfiles.d, sysctl.d or systemd/system. If it is given, only configuration files in this subdirectory (across all configuration paths) will be analyzed. Otherwise, all configuration files will be analyzed. If the command line argument is not given at all, all configuration files will be analyzed. See below for some examples. OPTIONS
The following options are understood: -t, --type= When listing the differences, only list those that are asked for. The list itself is a comma-separated list of desired difference types. Recognized types are: masked Show masked files equivalent Show overridden files that while overridden, do not differ in content. redirected Show files that are redirected to another. overridden Show overridden, and changed files. extended Show *.conf files in drop-in directories for units. unchanged Show unmodified files too. --diff= When showing modified files, when a file is overridden show a diff as well. This option takes a boolean argument. If omitted, it defaults to true. -h, --help Print a short help text and exit. --version Print a short version string and exit. --no-pager Do not pipe output into a pager. EXAMPLES
To see all local configuration: systemd-delta To see all runtime configuration: systemd-delta /run To see all system unit configuration changes: systemd-delta systemd/system To see all runtime "drop-in" changes for system units: systemd-delta --type=extended /run/systemd/system EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise. SEE ALSO
systemd(1), systemd.unit(5) systemd 237 SYSTEMD-DELTA(1)

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