请各位帮忙看个date修改时间的问题，3Q！

jason680

回复 1# youcaihuazi

$ echo 20141022093000 | sed -r 's/(....)(..)(..)(..)(..)(..)/\1-\2-\3 \4:\5:\6/'| xargs -i date -d "{} GMT" "+%Y%m%d%H%M%S"
20141022173000

Note: maybe you need modify GMT to -8

jason680

回复 3# youcaihuazi

1. debug by yourself

2. you can change +0 to  +8,-8,... for the right answer what you want
Note: all reply DIDNOT modify your system time

$ cat FILE
ID03440321|0|10000|20141023020934

$ awk 'BEGIN{FS=OFS="|"}{d=gensub(/(....)(..)(..)(..)(..)(..)/,"\\1-\\2-\\3 \\4:\\5:\\6","",$4);cmd="date -d \""d" +0\" \"+%Y%m%d%H%M%S\"";cmd | getline D;print "debug: "d"=>"D;$4=D;print}' FILE
debug: 2014-10-23 02:09:34=>20141023100934
ID03440321|0|10000|20141023100934