Linux System Administration Recipes A Problem-Solution Approach

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CHAPTER 1 ■ SAVING YOURSELF EFFORTwith all to add all the remaining ones or end to skip all the rest at any point), and then add and committhem with your message:01 #!/usr/bin/perl -w02 #03 # Script to add multiple files to Subversion by running SVN status and asking04 # for confirmation.05 # Usage: svnmultiadd "message"06 # Juliet Kemp 04.03.20090708 use strict;0910 die "Usage: svnmultiadd 'message'\n" if $#ARGV != 0;1112 my $msg = " -m '$ARGV[0]'";1314 my $filelist;15 my $all;16 open ( SVN, "svn status 2>&1 |" ) or die ("Couldn't get svn status: $!");17 while () {18 die "Not a SVN working copy directory" if (/not a working copy/);;19 my ($status, $file) = split;20 next unless $status eq "?";21 unless ($all) {22 print "Add $file? (Y/n/all/end) :";23 my $add = ;24 chomp $add;25 last if $add eq "end";26 next if ($add eq "n") || ($add eq "N");27 ($all = 1) if $add eq "all";28 }29 $filelist .= "$file ";30 }3132 print "Adding files $filelist \nGo ahead? (Y/n)\n";33 my $confirm = ;34 chomp $confirm;35 if ( $confirm =~ /[^Yy$]/ ) {36 `svn add $filelist; svn commit $msg`;37 } else {38 print "Add cancelled.\n";39 }As it stands, this will commit everything in the directory, not just your adds; in other words, it willalso commit any edited files. To commit only the added files, change line 36 to this:`svn add $filelist; svn commit $msg $filelist`12Download at WoweBook.Com
CHAPTER 1 ■ SAVING YOURSELF EFFORT1-11. Version Control: Telling Subversion to Ignore FilesFinally, you may find that there are particular files or types of file that you never want to add, such asautomatically generated backups. To remove these on a global basis, edit either your own~/.subversion/config file (to affect just your own repositories) or /etc/subversion/config (to affectall users on the system). Add this line (or uncomment it if it’s already there):# global-ignores = *.o *.lo *.la #*# .*.rej *.rej .*~ *~ .#*and edit it to include whatever specific wildcard or full file names you want. For example, if you oftenhave scratch-pad files called notes.txt that you don’t want to keep in SVN and you also don’t want tostore any file with a .bk extension, your line will look like this:global-ignores = *.bk notes.txtYou can also exclude a specific folder locally. If you want to ignore ~/scripts/test, then cd to~/scripts and type this:svn propset svn:ignore test .The dot at the end is important because it tells Subversion to use this directory as its base for theignore. Similarly, you could replace test in that with *.bk to ignore all files ending in .bk.The next time you run svn status, you won’t see any output for that file.Unfortunately, when using propset, it replaces the value rather than adding it; so, if you use this lineagain to ignore another file, the first file will be unignored. There are three ways to get around this: one isto create a directory ignores where you put anything that you don’t want in version control and thenignore that directory with svn propset svn:ignore:mkdir ignoresmv unwantedfile.txt ignoressvn propset svn:ignore ignores/The second is to add the file name(s) in the global-ignores line mentioned previously:global-ignores = *.bk notes.txt unwantedfile.txtAnd the third is to list the files, one per line, in a text file:unwantedfile.txtunwantedfile2.txtand then to use the following, which will give you the list of files that you’ve ignored:svn propset svn:ignore -file list_of_filessvn propget svn:ignore13Download at WoweBook.Com
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Page 7 and 8: Contents■About the Author .......
Page 9 and 10: ■ CONTENTS3-7. Writing a Nagios P
Page 11 and 12: ■ CONTENTS■Chapter 8: Using the
Page 13 and 14: ■ CONTENTSAbout the Author■Juli
Page 15 and 16: ■ CONTENTSAcknowledgmentsMany tha
Page 17 and 18: ■ CONTENTSIntroductionThis book i
Page 19 and 20: ■ INTRODUCTIONDownloading the Cod
Page 21 and 22: C H A P T E R 1■ ■ ■Saving Yo
Page 23 and 24: CHAPTER 1 ■ SAVING YOURSELF EFFOR
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Page 41 and 42: C H A P T E R 2■ ■ ■Centraliz
Page 43 and 44: CHAPTER 2 ■ CENTRALIZING YOUR NET
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C H A P T E R 3■ ■ ■Monitorin
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CHAPTER 3 ■ MONITORING AND UPDATI
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C H A P T E R 4■ ■ ■Taking Ba
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CHAPTER 4 ■ TAKING BACKUPS AND MA
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C H A P T E R 5■ ■ ■Working w
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CHAPTER 5 ■ WORKING WITH FILESYST
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C H A P T E R 6■ ■ ■Securing
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CHAPTER 6 ■ SECURING YOUR SYSTEMS
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CHAPTER 7 ■ WORKING WITH APACHEOn
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CHAPTER 7 ■ WORKING WITH APACHEdi
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CHAPTER 7 ■ WORKING WITH APACHE4.
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CHAPTER 7 ■ WORKING WITH APACHEAl
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C H A P T E R 8■ ■ ■Making Be
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CHAPTER 8 ■ USING THE COMMAND LIN
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CHAPTER 9 ■ WORKING WITH TEXT IN
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C H A P T E R 10■ ■ ■Things G
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CHAPTER 10 ■ THINGS GO IN, THINGS
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C H A P T E R 11■ ■ ■Tracking
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CHAPTER 11 ■ TRACKING DOWN BUGSTh
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CHAPTER 11 ■ TRACKING DOWN BUGS01
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CHAPTER 11 ■ TRACKING DOWN BUGS
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CHAPTER 11 ■ TRACKING DOWN BUGSTh
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CHAPTER 11 ■ TRACKING DOWN BUGSAn
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CHAPTER 11 ■ TRACKING DOWN BUGS#
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C H A P T E R 12■ ■ ■Managing
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CHAPTER 12 ■ MANAGING TIME AND PE
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APPENDIX■ ■ ■Perl TipsSee rec
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APPENDIX ■ PERL TIPS• Date::Par
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APPENDIX ■ PERL TIPSPerl Syntax N
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■ ■ ■Index■Symbols$CDPATH,
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■ INDEXenscript option (printing)
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■ INDEX■NNagiosadding hosts to,
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■ INDEXsyslogcentralized logging
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