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有关awk日期格式与提取的代码，研究awk的不错的小例子。
一、给定的时间区间提取目标行：
复制代码代码如下:
start="2011 09 07 09 30 00"
end="2011 09 07 10 00 59" awk '$1~/ERROR/{ print $0} ' catalina.out | awk -F '[-: ]+' -v s="$start" -v e="$end" 'mktime($2" "$3" "$4" "$5" "$6" "substr($7,1,2))>=mktime(s)&&mktime($2" "$3" "$4" "$5" "$6" "substr($7,1,2))<=mktime(e)'
二、提取时间段:
复制代码代码如下:
#!/bin/bash
(责任编辑：IT)start="2011 09 07 09 30 00" end="2011 09 07 10 00 59" awk -F '[-: ]+' -v s="$start" '{ if ( $1~/ERROR/ && mktime($2" "$3" "$4" "$5" "$6" "substr($7,1,2)) >=mktime(s)) print NR }' catalina.out > tmp1 awk -F '[-: ]+' -v e="$end" '{ if ( $1~/ERROR/ && mktime(e)>=mktime($2" "$3" "$4" "$5" "$6" "substr($7,1,2))) print NR } ' catalina.out > tmp2 t1=`head -n 1 tmp1` t2=`tail -n 1 tmp2` sed -n ''$t1','$t2'p' catalina.out rm -rm tmp1 rm -rm tmp2 |