ulimit
最后更新于：2022-04-02 03:51:00
[TOC]
## 实例
### 查看当前限制参数：
```
ulimit -a
guli@guli-Ubuntu1:~$ ulimit -a
core file size (blocks, -c) 0 (core dump 文件大小)
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 7685
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 1024 (当前用户所能打开的最大文件描述符)
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 7685
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
```
### 临时、立即生效的修改：
```
# ulimit -n 65535
```
### 永久生效的修改：
vim /etc/security/limits.conf
```
在文件尾部添加如下代码：
* soft nofile 10240
* hard nofile 10240
```
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