diff --git a/sources/tech/20141205 10 free Commands to Check Memory Usage in Linux.md b/sources/tech/20141205 10 free Commands to Check Memory Usage in Linux.md deleted file mode 100644 index 510e4d571a..0000000000 --- a/sources/tech/20141205 10 free Commands to Check Memory Usage in Linux.md +++ /dev/null @@ -1,131 +0,0 @@ -[su-kaiyao]translating - -10 ‘free’ Commands to Check Memory Usage in Linux -================================================================================ -**Linux** is one of the most popular open source operating system and comes with huge set of commands. The most important and single way of determining the total available space of the **physical memory** and **swap memory** is by using “**free**” command. - -The Linux “**free**” command gives information about total used and available space of **physical memory** and **swap memory** with **buffers** used by kernel in **Linux/Unix** like operating systems. - -![10 Linux Free Command Examples](http://www.tecmint.com/wp-content/uploads/2012/09/Linux-Free-commands.png) - -This article provides some useful examples of “**free**” commands with options, that might be useful for you to better utilize memory that you have. - -### 1. Display System Memory ### - -Free command used to check the used and available space of **physical memory** and **swap memory** in **KB**. See the command in action below. - - # free - - total used free shared buffers cached - Mem: 1021628 912548 109080 0 120368 655548 - -/+ buffers/cache: 136632 884996 - Swap: 4194296 0 4194296 - -### 2. Display Memory in Bytes ### - -Free command with option **-b**, display the size of memory in **Bytes**. - - # free -b - - total used free shared buffers cached - Mem: 1046147072 934420480 111726592 0 123256832 671281152 - -/+ buffers/cache: 139882496 906264576 - Swap: 4294959104 0 4294959104 - -### 3. Display Memory in Kilo Bytes ### - -Free command with option **-k**, display the size of memory in (KB) **Kilobytes**. - - # free -k - - total used free shared buffers cached - Mem: 1021628 912520 109108 0 120368 655548 - -/+ buffers/cache: 136604 885024 - Swap: 4194296 0 4194296 - -### 4. Display Memory in Megabytes ### - -To see the size of the memory in **(MB) Megabytes** use option as **-m**. - - # free -m - - total used free shared buffers cached - Mem: 997 891 106 0 117 640 - -/+ buffers/cache: 133 864 - Swap: 4095 0 4095 - -### 5. Display Memory in Gigabytes ### - -Using **-g** option with free command, would display the size of the memory in **GB(Gigabytes)**. - - # free -g - total used free shared buffers cached - Mem: 0 0 0 0 0 0 - -/+ buffers/cache: 0 0 - Swap: 3 0 3 - -### 6. Display Total Line ### - -Free command with -t option, will list the total line at the end. - - # free -t - - total used free shared buffers cached - Mem: 1021628 912520 109108 0 120368 655548 - -/+ buffers/cache: 136604 885024 - Swap: 4194296 0 4194296 - Total: 5215924 912520 4303404 - -### 7. Disable Display of Buffer Adjusted Line ### - -By default the free command display “**buffer adjusted**” line, to disable this line use option as -o. - - # free -o - - total used free shared buffers cached - Mem: 1021628 912520 109108 0 120368 655548 - Swap: 4194296 0 4194296 - -### 8. Dispaly Memory Status for Regular Intervals ### - -The -s option with number, used to update free command at regular intervals. For example, the below command will update free command every 5 seconds. - - # free -s 5 - - total used free shared buffers cached - Mem: 1021628 912368 109260 0 120368 655548 - -/+ buffers/cache: 136452 885176 - Swap: 4194296 0 4194296 - -### 9. Show Low and High Memory Statistics ### - -The -l switch displays detailed high and low memory size statistics. - - # free -l - - total used free shared buffers cached - Mem: 1021628 912368 109260 0 120368 655548 - Low: 890036 789064 100972 - High: 131592 123304 8288 - -/+ buffers/cache: 136452 885176 - Swap: 4194296 0 4194296 - -### 10. Check Free Version ### - -The -V option, display free command version information. - - # free -V - - procps version 3.2.8 - --------------------------------------------------------------------------------- - -via: http://www.tecmint.com/check-memory-usage-in-linux/ - -作者：[Ravi Saive][a] -译者：[译者ID](https://github.com/译者ID) -校对：[校对者ID](https://github.com/校对者ID) - -本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出 - -[a]:http://www.tecmint.com/author/admin/ diff --git a/translated/tech/20141205 10 free Commands to Check Memory Usage in Linux.md b/translated/tech/20141205 10 free Commands to Check Memory Usage in Linux.md new file mode 100644 index 0000000000..fe56c55f93 --- /dev/null +++ b/translated/tech/20141205 10 free Commands to Check Memory Usage in Linux.md @@ -0,0 +1,147 @@ +10个检测Linux内存使用情况的‘free’命令 +=== + +**Linux**是最有名的开源操作系统之一，它拥有着极其巨大的指令集。确定**物理内存**和**交换内存**所有可用空间的最重要，也是唯一的方法是使用“**free**”命令。 + +Linux “**free**”命令通过给出**Linux/Unix**操作系统中内核已使用的**buffers**情况，来提供**物理内存**和**交换内存**的总使用量和可用量。 + +![10 Linux Free Command Examples](http://www.tecmint.com/wp-content/uploads/2012/09/Linux-Free-commands.png) + +这篇文章提供一些带有参数选项的“**free**”命令，这些命令对于你更好地利用你的内存会有帮助。 + +### 1. 显示你的系统内存 ### + +free命令用于检测**物理内存**和**交换内存**已使用量和可用量（单位为**KB**）。下面演示命令的使用情况。 + + # free + + total used free shared buffers cach +ed + Mem: 1021628 912548 109080 0 120368 6555 +48 + -/+ buffers/cache: 136632 884996 + Swap: 4194296 0 4194296 + +### 2. 以字节为单位显示内存 ### + +加上**-b**参数的free命令，以**字节**为单位显示内存的大小。 + + # free -b + + total used free shared buffers cach +ed + Mem: 1046147072 934420480 111726592 0 123256832 6712811 +52 + -/+ buffers/cache: 139882496 906264576 + Swap: 4294959104 0 4294959104 + +### 3. 以千字节为单位显示内存 ### + +加上**-k**参数的free命令，以(KB)**千字节**为单位显示内存大小。 + + # free -k + + total used free shared buffers cach +ed + Mem: 1021628 912520 109108 0 120368 655548 + -/+ buffers/cache: 136604 885024 + Swap: 4194296 0 4194296 + +### 4. 以兆字节为单位显示内存 ### + +想以**(兆字节)**显示内存大小，使用**-m**参数。 + + # free -m + + total used free shared buffers cach +ed + Mem: 997 891 106 0 117 6 +40 + -/+ buffers/cache: 133 864 + Swap: 4095 0 4095 + +### 5. 以千兆字节为单位显示内存 ### + +使用**-g**为参数，将会以**GB(千兆字节)**为单位显示内存大小。 + + # free -g + total used free shared buffers cached + Mem: 0 0 0 0 0 + 0 + -/+ buffers/cache: 0 0 + Swap: 3 0 3 + +### 6. 显示总计行 ### + +加上-t选项，将会在屏幕最后列出总计一行。 + + # free -t + + total used free shared buffers cache +d + Mem: 1021628 912520 109108 0 120368 6555 +48 + -/+ buffers/cache: 136604 885024 + Swap: 4194296 0 4194296 + Total: 5215924 912520 4303404 + +### 7. 关闭显示缓冲区调整一行 ### + +默认情况下，free命令是显示“**缓冲区调整**”一行的，为了关闭显示，可以加上-o参数。 + + # free -o + + total used free shared buffers cache +d + Mem: 1021628 912520 109108 0 120368 6555 +48 + Swap: 4194296 0 4194296 + +### 8. 定期时间间隔更新内存状态 ### + +-s选项加上一个整数，用来在定期时间间隔内更新free命令。举个例子，下面的命令将会在每5秒更新一个free命令。 + + # free -s 5 + + total used free shared buffers cach +ed + Mem: 1021628 912368 109260 0 120368 6555 +48 + -/+ buffers/cache: 136452 885176 + Swap: 4194296 0 4194296 + +### 9. 显示底和高内存统计信息 ### + +-l选项显示了具体的高和低内存的使用统计情况。 + + # free -l + + total used free shared buffers cach +ed + Mem: 1021628 912368 109260 0 120368 6555 +48 + Low: 890036 789064 100972 + High: 131592 123304 8288 + -/+ buffers/cache: 136452 885176 + Swap: 4194296 0 4194296 + +### 10. 检查free命令版本 ### + +-V选项，显示free命令版本信息。 + + # free -V + + procps version 3.2.8 + +--- + +via: http://www.tecmint.com/check-memory-usage-in-linux/ + +作者：[Ravi Saive][a] +译者：[su-kaiyao](https://github.com/su-kaiyao) +校对：[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中> +国](http://linux.cn/) 荣誉推出 + +[a]:http://www.tecmint.com/author/admin/