company-frontends & company-backends in the buffer in question and found that auto-complete-mode was enabled which was the contributor to the lower completion buffer which I wanted to get rid off. I also remembered disabling global-auto-complete-mode
But, the devil is in the details taking a peek into ac-config-default showed the culprit (all the way below in line #10).
So, with a little tinkering later we get
And, all is well in Emacs :)
|- Chapter 001 to 010 |---- c001-p01.jpg |---- c001-p02.jpg |---- ... |---- c010-p21.jpg |---- c010-p22.jpg |- Chapter 011 to 020 |- ... |- Chapter 511 to 520 |- ...I prefer to read my comics in cdisplay/comix which can read cbz/cbr formats. I was looking for an easy way of automating the process in elisp (buoyed by my previous success with the Luhnz algorithm). I was also itching to use this. My attempt at creating a script in one go was a failure and since I wanted to do it quick I used this
M-: (dotimes (i 52) (insert (format "cd \"Chapter %03d to %03d\"\n(dotimes (i 10) (insert (format \"\\\"C:\\\\Program Files\\\\7-Zip\\\\7z.exe\\\" a -tzip \\\"E:\\\\comics\\\\Naruto\\\\out\\\\%s.cbz\\\" c%s-*\\n\" (+ %d i) (+ %d i))))\ncd ..\n" (1+ (* i 10)) (* (+ i 10)) "%03d" "%03d" (1+ (* i 10)) (1+ (* i 10)))))On running which I got this
cd "Chapter 001 to 010" (dotimes (i 10) (insert (format "\"C:\\Program Files\\7-Zip\\7z.exe\" a -tzip \"E:\\comics\\Naruto\\out\\%03d.cbz\" c%03d-*\n" (+ 1 i) (+ 1 i)))) cd .. cd "Chapter 011 to 011" (dotimes (i 10) (insert (format "\"C:\\Program Files\\7-Zip\\7z.exe\" a -tzip \"E:\\comics\\Naruto\\out\\%03d.cbz\" c%03d-*\n" (+ 11 i) (+ 11 i)))) cd .. cd "Chapter 021 to 012" (dotimes (i 10) (insert (format "\"C:\\Program Files\\7-Zip\\7z.exe\" a -tzip \"E:\\comics\\Naruto\\out\\%03d.cbz\" c%03d-*\n" (+ 21 i) (+ 21 i)))) cd ..Then positioning the caret at the first character for the dotimes line I recorded the following macro
C-x ( C-k M-: C-y C-j C-k C-n C-n C-x ). This done, I ran the macro C-x e and held down the e till all occurrences were covered and I got this.
cd "Chapter 001 to 010" "C:\Program Files\7-Zip\7z.exe" a -tzip "E:\comics\Naruto\out\001.cbz" c001-* "C:\Program Files\7-Zip\7z.exe" a -tzip "E:\comics\Naruto\out\002.cbz" c002-* ... "C:\Program Files\7-Zip\7z.exe" a -tzip "E:\comics\Naruto\out\010.cbz" c010-* cd .. ...I saved it as a bat file and let it loose and I had a neat little directory in which all the cbz files :). I'm sure there are more cleverer ways to accomplish this but, this was the easiest approach that I could think of (after a few failed attempts at nested inserts and let).
find . -name '*.java' | xargs sed -i '/System.out.println/d'
and that din't work out too well because of multiline sysouts. So, I
decided to try the AST approach using the java parser from http://code.google.com/p/javaparser/. So, create a maven project add the javaparser repository and dependency in the pom.xml as given below
hg serve is simply priceless. With minimal hgignore and svn:ignore changes mercurial and subversion can be made to mutually ignore each other :D.
Heres a simple example
$ mvn archetype:create -DgroupId=test -DartifactId=test -Dversion=1.0 -Dpackaging=jar -Dpackage=test
[INFO] Scanning for projects...
[INFO] Searching repository for plugin with prefix: 'archetype'.
[INFO] ------------------------------------------------------------------------
[INFO] Building Maven Default Project
[INFO] task-segment: [archetype:create] (aggregator-style)
[INFO] ------------------------------------------------------------------------
[INFO] Setting property: classpath.resource.loader.class => 'org.codehaus.plexus.velocity.ContextClassLoaderResourceLoader'.
[INFO] Setting property: velocimacro.messages.on => 'false'.
[INFO] Setting property: resource.loader => 'classpath'.
[INFO] Setting property: resource.manager.logwhenfound => 'false'.
[INFO] [archetype:create {execution: default-cli}]
[WARNING] This goal is deprecated. Please use mvn archetype:generate instead
[INFO] Defaulting package to group ID: test
[INFO] ----------------------------------------------------------------------------
[INFO] Using following parameters for creating OldArchetype: maven-archetype-quickstart:RELEASE
[INFO] ----------------------------------------------------------------------------
[INFO] Parameter: groupId, Value: test
[INFO] Parameter: packageName, Value: test
[INFO] Parameter: package, Value: test
[INFO] Parameter: artifactId, Value: test
[INFO] Parameter: basedir, Value: f:\shyam\emacs-23\bin
[INFO] Parameter: version, Value: 1.0
[INFO] ********************* End of debug info from resources from generated POM ***********************
[INFO] OldArchetype created in dir: f:\shyam\emacs-23\bin\test
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2 seconds
[INFO] Finished at: Thu Feb 24 03:15:08 IST 2011
[INFO] Final Memory: 8M/20M
[INFO] ------------------------------------------------------------------------
$ svn add test
A test/pom.xml
A test/src
A test/src/main
A test/src/main/java
A test/src/main/java/test
A test/src/main/java/test/App.java
A test/src/test
A test/src/test/java
A test/src/test/java/test
A test/src/test/java/test/AppTest.java
$ svn commit -m "adding test"
Adding test/pom.xml
Adding test/src
Adding test/src/main
Adding test/src/main/java
Adding test/src/main/java/test
Adding test/src/main/java/test/App.java
Adding test/src/test
Adding test/src/test/java
Adding test/src/test/java/test
Adding test/src/test/java/test/AppTest.java
Transmitting file data .
Committed revision 34.
$ cd test
$ svn propset svn:ignore '.hg
.hgignore
.project
.classpath
.settings
target' .
property 'svn:ignore' set on .
$ svn commit -m "setting svn:ignore"
Sending .
Committed revision 34.
$ hg init
$ cat > .hgignore
syntax: regexp
^target
^.project
^.classpath
^.settings
syntax: glob
.svn
^D
$ hg add
adding .hgignore
adding pom.xml
adding src/main/java/test/App.java
adding src/test/java/test/AppTest.java
$ hg commit -m "initial import"
And, we are all set to go :)
svn:externals
svn:externals. Here is how my svn repo was laid out
/tags /branches /trunk/my-project-war /trunk/my-project-war/src /trunk/my-project-war/WebContent /trunk/my-project-war/... /trunk/my-project-services /trunk/my-project-services/pom.xml /trunk/my-project-services/core /trunk/my-project-services/core/pom.xml /trunk/my-project-services/...Here is an abridged version of how I configured it.
$ svn co http://.../trunk/my-project-services services-proj $ cd services-proj $ mvn archetype:generate -DgroupId=com... -DartifactId=ui -Dversion=1.0 -Dpackaging=jar -Dpackage=com... $ cd ui $ # clean up the default archetype files and create create the parent directories $ # down to penultimate package level eg. for com.mycompany.project.vo $ mkdir -p src/main/java/com/mycompany/project $ # add the ui directory to subversion and do a preliminary commit $ # drop down to the created directory $ cd src/main/java/com/mycompany/project $ # setup svn:externals $ svn propset svn:externals 'vo ^/trunk/my-project-war/src/com/mycompany/project/vo' . $ svn commit -m "setting up link to ui project" . $ svn up $ # all done :)Whenever you update or check status of your working copy the linked directory will be displayed with an
X
$ cd services-proj/ui/ $ svn st X services-proj/ui/com/mycompany/project/vo
root@lucid-myndbmgr# mysqladmin version
mysqladmin Ver 8.42 Distrib 5.1.39-ndb-7.0.9, for debian-linux-gnu on i486
Copyright 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc.
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under GPL license
Server version 5.1.39-ndb-7.0.9-1ubuntu7
Protocol version 10
Connection Localhost via UNIX socket
UNIX socket /var/run/mysqld/mysqld.sock
Uptime 24 min 57 sec
Thread: 1 Questions: 7 Slow queries: 0 Opens: 15 Flush tables: 1 Open tables: 8 Queries per second avg: 0.4
root@lucid-myndbmgr# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 08:00:27:1d:ed:e8
inet addr:10.0.0.2 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fe1d:ede8/54 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets: 22 errors:0 dropped:0 overruns:0 frame:0
TX packets: 21 errors:0 dropped:0 overruns:0 carrier:0
ncollisions:0 txqueuelen:1000
RX bytes:3294 (3.2 KB) TX bytes:2136 (2.1 KB)
Interrupt:10 Base address:0xd020
root@lucid-myndbmgr# mysqladmin ping
mysqld is alive
root@lucid-myndbmgr# hostname
lucid-myndbmgr
root@lucid-myndbmgr# grep 'bind-address' /etc/mysql/my.cnf
bind-address = 10.0.0.2
root@lucid-myndbmgr# netstat -an | grep 3306
tcp 0 0 10.0.0.2:3306 0.0.0.0:* LISTEN
root@lucid-myndbmgr# mysqladmin -h 10.0.0.2 ping
mysqladmin: connect to server at '10.0.0.2' failed
error: 'Can't get hostname for your address'
After some furious googling and some wisdom from #mysql I figured out that mysql requires a functional DNS to work (I still haven't figured out why my DNS config is getting ignored :(..). Initial suggestions were to open up port 3306, remove bind-address and do not use skip-networking. They din't help
root@lucid-myndbmgr# iptables -A INPUT -p tcp --dport 3306 -s 0/0 -j ACCEPT root@lucid-myndbmgr# iptables -A OUTPUT -p tcp --sport 3306 -d 0/0 -j ACCEPT root@lucid-myndbmgr# iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT tcp -- anywhere anywhere tcp dpt:mysql Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination ACCEPT tcp -- anywhere anywhere tcp spt:mysql root@lucid-myndbmgr# grep 'bind-address\|skip-networking' /etc/mysql/my.cnf # Instead of skip-networking the default is now to listen only on #bind-address = 10.0.0.2 root@lucid-myndbmgr# mysqladmin -h 10.0.0.2 ping mysqladmin: connect to server at '10.0.0.2' failed error: 'Can't get hostname for your address'So, as a workaround found skip-name-resolve parameter which conveniently skips this.
root@lucid-myndbmgr# grep 'skip-name-resolve' /etc/mysql/my.cnf skip-name-resolve root@lucid-myndbmgr# mysqladmin -h 10.0.0.2 ping mysqld is alive root@lucid-myndbmgr#
Found an annoying thing in one of the new servers I was playing around. It generated some log files as root and permissions of 600 and others as the designated user. Now the problem is that when I open log files with 600 permission in vi it happily opens up but, shows a blank buffer with 'Permission Denied' error. After a couple of times I got really annoyed and decided to fix it.
#!/bin/sh if [ -e $1 -a ! -r $1 ]; then echo No read permission for $1 exit 1 fi /usr/bin/vi $1But, sadly that did not cut it
vi() {
if [ -e $1 -a ! -r $1 ]; then
echo No read permission for $1
else
/usr/bin/vi $1
fi
}
$ # associate image file with a loop device $ losetup /dev/loop0 jaunty.img $ # create a mount point $ mkdir mnt $ # mount it :) $ mount -t ext3 /dev/loop0 mnt $ # chroot to navigate easily $ chroot mntThen I found the jboss CirrAS project that gives a vm image with a clustered jboss setup (both for ec2 and xen/kvm). So, out of curiosity I downloaded the images and since my eucalyptus cloud is operating in SYSTEM, I have to setup the vm instance such that it pings the CLC a few times so that the IP address gets updated. When I tried the tried and tested method above...boom nothing happened I kept getting
$ mount -t ext3 /dev/loop0 mnt
mount: wrong fs type, bad option, bad superblock on /dev/loop0,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
So, after some googling and some very helpful hints from #stormgrind turns out the CirrAS images have 2 partitions and if there are multiple partitions the loop device must be given an offset from which the actual image starts and the partition table ends :|. Thankfully mgoldmann in the irc channel suggested some sites that worked like a charm :)
$ # associate image file with a loop device with offset $ losetup -o 32256 /dev/loop0 back-end-sda.raw $ # create a mount point $ mkdir mnt $ # mount it :) $ mount -t ext3 /dev/loop0 mnt $ # w00tHow did I arrive at 32256? Simple. For images created by bximage you must use the value 32256 words of wisdom from here References http://bochs.sourceforge.net/doc/docbook/user/loop-device-usage.html http://varghese85-cs.blogspot.com/2008/11/mouting-partitions-with-losetup.html
# reject all ping requests iptables -A INPUT -p icmp -j REJECT # drop all ssh (tcp:22) requests from 10.0.0.37 # DROP means that whoever is trying to connect from 37 will not get a connection refused...devious >( iptables -A INPUT -p tcp --sport 22 -s 10.0.0.37 -j DROP
-exec argument. I've spent countless hours piping find to a file, doing a global replace to execute the desired command and running it as a shell script; that I was simply thrilled to find that I could do it all in one single step :) (I only wish I had a little more patience reading the man pages that I would have stumbled into it sooner).
Take for example removing those pesky ws_ftp.log files that litter your directories when someone decides to use ws_ftp to ftp files instead of filezilla. Here is how you can get rid them in a single command
find . -type f -name 'WS_FTP.log' -exec rm -f {} \;
Another cool trick to get rid of the Permission denied messages that otherwise fill up the screen when doing global searches is to redirect stderr to /dev/null.
find / -type f -name 'serverindex.xml' -exec grep -l '8100' {} \; 2>/dev/null
One quick note about using cygwin the \; that should terminate the exec portion of the find should actually be \ ; in cygwin or according to the wikipedia even a plain ; will do
cut -c 1-32 file1.txt > left cut -c 48- file1.txt > right cut -c 64-108 file2.txt > middle paste -d '\0' left middle right # do not use the default delimiter instead use nullFinally I managed to refine the entire process into a series of cut and pastes in sequence.
%APPDATA%\Google\Update\GoogeUpdate.exe %APPDATA%\Google\Update\1.2.141.5\GoogeUpdate.exe %APPDATA%\Google\Update\1.2.141.5\GoogeUpdateHelper.msi %PROGRAM_FILES%\Google\Update\GoogeUpdate.exe %PROGRAM_FILES%\Google\Common\Google Updater\GoogeUpdaterService.exe %PROGRAM_FILES%\Google\Update\1.2.141.5\GoogeUpdate.exe %PROGRAM_FILES%\Google\Update\1.2.141.5\GoogeUpdateHelper.msiAnd google is still not satisfied :O..there are 2 scheduled tasks as well
GoogleUpdateTaskMachine - to run at startup GoogleUpdateTaskUserS-X-X-XX-XXXXXXXXXX-XXXXXXXXXX-XXXXXXXXX-XXXX - to run when idleIf you thought google was satisfied with that you're wrong they have the one last trick up in the registry
HKCU\Software\Microsoft\Windows\CurrentVersion\RunAfter software, adware, nagware, annoyware, bloatware google has introduced updateware :/ ps. follow this excellent link on instruction to get rid of it all
String tStr = request.getParameter("frmAmt_D_DR");
if ( tStr != null && !"".equals(tStr.trim()) ) {
xxxDDrAmt = Double.parseDouble(trStr);
}
In this I want to transform the Double.parseDouble line to
xxxDDrAmt = parseLocalizedDouble(request, "frmAmt_D_DR", locale);The change had to be done in a lot of files and I was racking my brains trying to figure out a macro to do this. I even tried to match the entire snippet but, ran into trouble with both approaches especially because the
if condition could include other conditions and there might also be more than one limits that had to be processed. Then I found some obscure comment somewhere in one of the my numerous entreaties to google that referred to evaluated expression in the replacement giving me my Eureka! moment :).
Since all the variable names were always some contraction of the actual input parameter name all I needed to do was to device an expression that constructed the parameter name from the variable name. Its long and ugly but gets the job done :D
:g/Double\.parseDouble/s/\(\w\+Amt\w*\).*$/\= submatch(1) . " = parseLocalizedDouble(request, \"frm_" . toupper(strpart(submatch(1), 3, 1)) . "_" . toupper(strpart(submatch(1), 4, 2)) . (strlen(strpart(submatch(1), 9)) > 1 ? "_" . strpart(submatch(1), 9) : "") . "\", locale);"/Running this,
xxxDDrAmt = Double.parseDouble(trStr);becomes
xxxDDrAmt = parseLocalizedDouble(request, "frm_D_DR", locale);and
xxxDDrAmtUSD = Double.parseDouble(trStr);becomes
xxxDDrAmtUSD = parseLocalizedDouble(request, "frm_D_DR_USD", locale);Here is an annotated version but don't try using this one vim expects the entire thing to be in a single line :|
:g/Double\.parseDouble/ # global search for double parsing
s/\(\w\+Amt\w*\).*$ # search for variable names containing Amt
/\= submatch(1) # submatch(1) gives the first group
. " = parseLocalizedDouble(request, \"frm_" # . is the string concatenation operator
. toupper(strpart(submatch(1), 3, 1)) . "_" # strpart is the substr equivalent in vim
. toupper(strpart(submatch(1), 4, 2))
. (strlen(strpart(submatch(1), 9)) > 1 # don't change Amts to _S :)
? "_" . strpart(submatch(1), 9) : "") # vim even supports the ternary operator ^_^
. "\", locale);"
/