zzs10086

ps -aux | grep redis
ll /proc/1814/cwd

tar -cvf base.tar base/
tar -tf base.tar.gz
tar -tf base.tar.gz

diff t1.txt t2.txt
diff -y t1.txt t2.tx
vimdiff t1.txt t2.txt

find . -name “*.c”
find . -type f
find . -size 0 -ls

软链接：ln -s doc.txt doc.txt.soft
硬链接：ln doc.txt doc.txt.hard

cat test1.sh > test3.sh
cat test1.sh >> test3.sh

Linux uname命令
uname -a

$ touch authorized_keys
$ cat jubaopen_rsa_2048.pub >> authorized_keys
$ chmod 600 authorized_keys