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strings
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===
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在对象文件或二进制文件中查找可打印的字符串
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## 补充说明
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**strings命令** 在对象文件或二进制文件中查找可打印的字符串。字符串是4个或更多可打印字符的任意序列，以换行符或空字符结束。 strings命令对识别随机对象文件很有用。
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### 语法
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```
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strings [ -a ] [ - ] [ -o ] [ -t Format ] [ -n Number ] [ -Number ] [file ... ]
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```
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```
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-a --all：扫描整个文件而不是只扫描目标文件初始化和装载段
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-f –print-file-name：在显示字符串前先显示文件名
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-n –bytes=[number]：找到并且输出所有NUL终止符序列
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- ：设置显示的最少的字符数，默认是4个字符
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-t --radix={o,d,x} ：输出字符的位置，基于八进制，十进制或者十六进制
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-o ：类似--radix=o
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-T --target= ：指定二进制文件格式
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-e --encoding={s,S,b,l,B,L} ：选择字符大小和排列顺序:s = 7-bit, S = 8-bit, {b,l} = 16-bit, {B,L} = 32-bit
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@ ：读取中选项
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```
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### 实例
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列出ls中所有的ASCII文本：
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```
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strings /bin/ls
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```
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列出ls中所有的ASCII文本：
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```
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cat /bin/ls strings
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```
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查找ls中包含libc的字符串，不区分大小写：
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```
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strings /bin/ls | grep -i libc
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```
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