SHELL下十二种读文件的方法
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/ 个人分类:Shell 编程
- 文件版本: V1.0
- 开发商: 本站原创
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- 界面语言: 简体中文
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- 运行平台: Win9X/Win2000/WinXP
2|-LM(m8ZV8Qa0以KSH为例:51Testing软件测试网+}3V:T;O k~ }
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#!/usr/bin/ksh51Testing软件测试网 \D x;b&c.dHS)@;vZ
#
],q7wbE9Xrf6F cV8k0# scrīpt: 12_ways_to_parse.ksh.ksh
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# PURPOSE: This scrīpt shows the different ways of reading51Testing软件测试网?8u#T]mv1P
# a file line by line. Again there is not just one way51Testing软件测试网|'T u/Ma4O)W/tt#j
# to read a file line by line and some are faster than
~5dd^H0# others and some are more intuitive than others.
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J"T7K.oI@8R(zi0# 03/15/2002 - Randy Michael
/C$iC(TXm6R0# Set each of the while loops up as functions and the timing
xa%Ez G~Ji0# of each function to see which one is the fastest.51Testing软件测试网7N] ZM3v
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# NOTE: To output the timing to a file use the following syntax:
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Q-N:p;|.a Q0# 12_ways_to_parse.ksh file_to_process > output_file_name 2>&151Testing软件测试网 wI7dI$`AP#G3f{ j
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-ewk8E9Y0# The actaul timing data is sent to standard error, file
$L'?vs0GQ0# descrīptor (2), and the function name header is sent51Testing软件测试网i%M {5~8c
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# to standard output, file descrīptor (1).51Testing软件测试网(}aTR"Jz
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