diff --git a/.backup/crontab-20210621-070100.gz b/.backup/crontab-20210621-070100.gz
new file mode 100644
index 0000000..7b33e85
Binary files /dev/null and b/.backup/crontab-20210621-070100.gz differ
diff --git a/.zsh_history b/.zsh_history
index d8e68bc..374019e 100644
--- a/.zsh_history
+++ b/.zsh_history
@@ -6782,7 +6782,6 @@ done
 : 1601630140:0;youtube-dl -i -f 'bestvideo[ext=webm]+bestaudio[ext=m4a]/bestvideo+bestaudio' --merge-output-format mp4 --yes-playlist --playlist-start 61 --playlist-end 760 https://www.youtube.com/playlist\?list\=PL2398327F92F9CA42
 : 1601684900:0;youtube-dl -i -f 'bestvideo[ext=webm]+bestaudio[ext=m4a]/bestvideo+bestaudio' --merge-output-format mp4 --yes-playlist --playlist-start 1 --playlist-end 200 https://www.youtube.com/playlist\?list\=PLOuhorhM7kXZZN53_NOkTh77eLcSzSWS4
 : 1601735576:0;ping
-: 1601735862:0;cd test/algorithm/1
 : 1601735889:0;git pull -v
 : 1601736189:0;hexo publish 'mybatis 烺��缃�孃�惸�怃�乃�僻��亃�'
 : 1601822355:0;cp 2.sh 3.sh
@@ -8496,7 +8495,6 @@ done
 : 1616572093:0;gcl https://github.com/dockere/jd-base.git jd-base-dockere
 : 1616636632:0;cd public
 : 1616636648:0;ls -alh
-: 1616637009:0;cat ~/.ssh/id_rsa.pub
 : 1616637107:0;cd .deploy_git
 : 1616637110:0;cd .git
 : 1616637113:0;cat config
@@ -8667,50 +8665,17 @@ done
 : 1619076051:0;/usr/local/bin/jpegoptim 95% 8f93361daa9ea8d969990cd84677bf3d.jpeg
 : 1619076062:0;/usr/local/bin/jpegoptim -S 95% 8f93361daa9ea8d969990cd84677bf3d.jpeg
 : 1619076085:0;/usr/local/bin/jpegoptim -S 85% 8f93361daa9ea8d969990cd84677bf3d.jpeg
-: 1619081730:1532;php artisan handle:video "/Volumes/intel660p/video/mv/bilibili/绯绯/"
-: 1619083701:0;php artisan handle:video "/Volumes/intel660p/video/mv/bilibili/绯绯/"
-: 1619081738:1525;php artisan handle:video "/Volumes/intel660p/video/mv/bilibili/tara/"
-: 1619083703:0;php artisan handle:video "/Volumes/intel660p/video/mv/bilibili/tara/"
 : 1619083965:0;/usr/local/bin/jpegoptim -S 85% DSCF4323.jpg
 : 1619084120:0;/usr/local/bin/jpegoptim -m 85 DSCF4323.jpg
 : 1619084189:0;/usr/local/bin/jpegoptim -m 85 -S 30% DSCF4323.jpg
-: 1619104565:0;dev
-: 1619104568:0;cd src
 : 1619104570:0;gcl https://github.com/cloudflare/jpegtran.git
 : 1619104584:0;cd jpegtran
-: 1619104585:0;ls
 : 1619104594:0;cat install.txt
-: 1619104642:0;./configure
-: 1619104656:0;make
-: 1619104883:0;make install
 : 1619104930:0;/usr/local/bin/jpegtran -h
 : 1619107650:0;cat ~/.zshrc | grep txy1
-: 1619105089:1910;php artisan handle:video "/Volumes/intel660p/video/mv/bilibili/绯绯/"
-: 1619108177:0;php artisan handle:video "/Volumes/intel660p/video/mv/bilibili/girls day/"
-: 1619108195:0;php artisan handle:video "/Volumes/intel660p/video/mv/bilibili/馃�胭��烬�饼/"
-: 1619108218:0;php artisan handle:video "/Volumes/intel660p/video/mv/bilibili/郿�僻�女僻��/"
-: 1619105049:34368;php artisan handle:video "/Volumes/WD/tmp/bilibili/aoa"
-: 1619144661:0;php artisan xiuren:s
-: 1619144749:0;exit
-: 1619144753:0;eproxy php artisan xiu:get -v
-: 1619144962:0;eproxy php artisan ins:like 65
-: 1619145261:0;unproxy
-: 1619145265:0;php artisan nvshen:get -v
-: 1619149186:0;php artisan tujigu:s
-: 1619156208:0;php artisan handle:video "/Volumes/intel660p/video/mv/bilibili/郿�僻�女僻��/"
-: 1619156214:4580;php artisan handle:video "/Volumes/intel660p/video/mv/bilibili/馃�胭��烬�饼/"
-: 1619164787:0;pwd
-: 1619164790:0;dev
-: 1619164791:0;cd src
 : 1619164798:0;gcl https://github.com/google/leveldb.git
-: 1619164847:0;gst
 : 1619164853:0;cd leveldb
-: 1619164854:0;ls
 : 1619164867:0;gco f67e15e50f392625b4097caf22e8be1b0fe96013
-: 1619164872:0;gst
-: 1619164874:0;ls
-: 1619169116:6075;ssh jump
-: 1619161904:10145;php artisan handle:video "/Volumes/WD/tmp/bilibili/aoa"
 : 1619177552:0;php artisan handle:video "/Volumes/WD/tmp/bilibili/aoa"
 : 1619161922:10128;php artisan handle:video "/Volumes/intel660p/video/mv/bilibili/郿�僻�女僻��/"
 : 1619177558:0;php artisan handle:video "/Volumes/intel660p/video/mv/bilibili/郿�僻�女僻��/"
@@ -10754,3 +10719,27 @@ done
 : 1624092868:0;php artisan xiuren:s
 : 1624105705:0;php artisan nvshen:get -v
 : 1624109781:0;eproxy php artisan xiu:get -v
+: 1624156531:0;eproxy php artisan ins:like 0
+: 1624192638:0;eproxy php artisan ins:like 65
+: 1624192648:0;dev
+: 1624192652:0;cd test/algorithm/1
+: 1624192653:0;ls
+: 1624192659:0;cd src/main/java
+: 1624192660:0;ls
+: 1624192676:0;javac SynchronizedDemo.java
+: 1624192678:0;ls
+: 1624192689:0;javap -p SynchronizedDemo
+: 1624192870:0;javap -c SynchronizedDemo
+: 1624193067:0;javap -v SynchronizedDemo
+: 1624193350:0;ls
+: 1624193352:0;javac SynchronizedDemo.java
+: 1624193357:0;javap -v SynchronizedDemo
+: 1624193546:0;unproxy
+: 1624193548:0;php artisan tujigu:s
+: 1624200312:0;php artisan nvshen:get -v
+: 1624201826:0;hexo publish "聃�聃� Java 中练�七�开烺�� Synchronized 僥�郴�孃�"
+: 1624201839:0;hexo clean && hexo g && hexo s --debug
+: 1624201928:0;hexo d --debug
+: 1624236673:0;exit
+: 1624202963:5;proxychains4 open -a "Backup and Sync.app"
+: 1624236681:0;exit