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Top Forums Shell Programming and Scripting Making a script to copy files not seen before (using md5sum) Post 302848675 by nbsparks on Thursday 29th of August 2013 06:26:35 PM
Old 08-29-2013
So I'm thinking more as I go... I haven't test this yet, but it this a valid modification?

Code:
SRC=/user/nick/.phonesync/photos-backup
DST=/user/nick/.phonesync/photos-new
MD5=/user/nick/.phonesync/photos-backup.md5

for f in $SRC/*
do
  grep -q $f $MD5
  if [[ $? -ne 0 ]]; then
    cp $SRC/$f $DST
  fi
done

Then the one thing I would want to add to this is to do an append of the md5sum of each file copied. So maybe having a "md5sum $f >>$MD5" before the close of the if statement. Does that sound like it would work? If so, how do I properly include that in the if? (Yes, I'm very new to this.)

Thanks!
 

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ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME
atf-sh [-s shell] -- interpreter for shell-based test programs SYNOPSIS
atf-sh script DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library. atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter- preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not use any non-standard extensions. The following options are available: -s shell Specifies the shell to use instead of the value provided by ATF_SHELL. ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes. ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes. ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a specific interpreter. EXAMPLES
Scripts using atf-sh(3) should start with: #! /usr/bin/env atf-sh Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode the path to atf-sh in the script and then use the -s option afterwards as a single parameter: #! /path/to/bin/atf-sh -s/bin/bash ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts. SEE ALSO
atf-sh(3) BSD
September 27, 2014 BSD
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