phpor – 第64页 – PHPor 的Blog

linux中断键和退出键

在Linux中，中断当前运行的进程的方法有两种：中断键方式：通常是DELETE键或CTRL-C，信号为SIG …

shell 基础

echo $str 与 echo “$str” 的不同： [crayon-6 …

shell字符串处理

1. 取长度

str="abcd"
expr length $str   # 4
echo ${#str}       # 4
expr "$str" : ".*" # 4

str="abcd"

expr length $str # 4

echo ${#str} # 4

expr "$str" : ".*" # 4

2. 查找子串的位置 [cra …

继续阅读“shell字符串处理”

docker 之 bash命令行自动补全

很多命令都会提供一个bash-complete的脚本，在执行该命令时，敲tab可以自动补全参数，会极大提高生产 …

继续阅读“docker 之 bash命令行自动补全”

Docker 存储

且看下docker info：

Containers: 43
Images: 57
Server Version: 1.9.1
Storage Driver: devicemapper
 Pool Name: docker-8:5-12884902107-pool
 Pool Blocksize: 65.54 kB
 Base Device Size: 107.4 GB
 Backing Filesystem:
 Data file: /dev/loop0
 Metadata file: /dev/loop1
 Data Space Used: 107.4 GB
 Data Space Total: 107.4 GB
 Data Space Available: 0 B
 Metadata Space Used: 70.27 MB
 Metadata Space Total: 2.147 GB
 Metadata Space Available: 2.077 GB
 Udev Sync Supported: true
 Deferred Removal Enabled: false
 Deferred Deletion Enabled: false
 Deferred Deleted Device Count: 0
 Data loop file: /data1/docker/devicemapper/devicemapper/data
 Metadata loop file: /data1/docker/devicemapper/devicemapper/metadata
 Library Version: 1.02.107-RHEL7 (2015-12-01)
Execution Driver: native-0.2
Logging Driver: json-file
Kernel Version: 3.10.0-327.13.1.el7.x86_64
Operating System: CentOS Linux 7 (Core)
CPUs: 32
Total Memory: 94.15 GiB
Name: 158-5.i.bbtfax.com
ID: TFQT:NSMK:UZP5:3ZMA:QLXD:O6JI:UENZ:PVE2:NR2S:5XIN:U3OB:6673
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled