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Linux File
file a.txt
/dev/zero
/dev/null
ulimit -n
OSError: [Errno 24] Too many open files: '1021.txt'
/etc/security/limits.conf
echo -e '* soft nproc 65535\n* hard nproc 65535\n* soft nofile 65535\n* hard nofile 65535\n' >>/etc/security/limits.conf
ll /proc/90722/fd
cat /proc/sys/fs/file-max
mkfs
sudo dumpe2fs /dev/vda1 | egrep -i 'inode count|inode size|block size|block count'
ln -s 1.txt 1_link.txt # 去掉-s就是硬链接文件
readlink 1_symbolic.txt
>access_log
lsof -i :22
ls -l --time-style=long-iso
ls -l
rsync
-a
ELF 64-bit LSB