如何快速将文本中的tab更换成逗号（图文详解）

[kfk@bigdata-pro01 datas]$ more weblogs.log 
00:00:00    2982199073774412    [360安全卫士]    8 3    download.it.com.cn/softweb/software/firewall/antivirus/20067/17938.html
00:00:00    07594220010824798    [哄抢救灾物资]    1 1    news.21cn.com/social/daqian/2008/05/29/4777194_1.shtml
00:00:00    5228056822071097    [75810部队]    14 5    www.greatoo.com/greatoo_cn/list.asp?link_id=276&title=%BE%DE%C2%D6%D0%C2%CE%C5
00:00:00    6140463203615646    [绳艺]    62 36    www.jd-cd.com/jd_opus/xx/200607/706.html
00:00:00    8561366108033201    [汶川地震原因]    3 2    www.big38.net/
00:00:00    23908140386148713    [莫衷一是的意思]    1 2    www.chinabaike.com/article/81/82/110/2007/2007020724490.html
00:00:00    1797943298449139    [星梦缘全集在线观看]    8 5    www.6wei.net/dianshiju/????\xa1\xe9|????do=index
00:00:00    00717725924582846    [闪字吧]    1 2    www.shanziba.com/
00:00:00    41416219018952116    [霍震霆与朱玲玲照片]    2 6    bbs.gouzai.cn/thread-698736.html
00:00:00    9975666857142764    [电脑创业]    2 2    ks.cn.yahoo.com/question/1307120203719.html
00:00:00    21603374619077448    [111aa图片]    1 6    www.fotolog.com.cn/tags/aa111
00:00:00    7423866288265172    [豆腐的制成]    3 13    ks.cn.yahoo.com/question/1406051201894.html
00:00:00    0616877776407358    [tudou.com+禁播电影]    2 9    topic.bindou.com/1487/
00:00:00    3933365481995287    [最佳受孕时间]    6 3    ks.cn.yahoo.com/question/1407051001276.html
00:00:00    8242389147671512    [捷克民歌土风舞++教案]    2 3    shwamlys.blog.sohu.com/76558184.html
00:00:00    8248403977107859    [pdf]    1 1    download.it168.com/18/1805/13947/13947_3.shtml
00:00:00    6239728533154822    [喷嘭乐团lonely+day]    7 9    www.songtaste.com/song/266563/
00:00:00    6551182914925117    [尼康相机报价]    6 4    product.it168.com/list/b/03050171_1.shtml
00:00:00    2345161545038265    [哄抢救灾物资]    2 1    pic.news.mop.com/gs/2008/0528/12985.shtml
00:00:00    06478452674857782    [1000]    4 1    www.1000dy.cn/
00:00:00    23405445793591878    [剑荡天下+++展鹏]    4 5    74.53.27.3/~xx4ucom/bbs/simple/index.php?t31744.html
00:00:00    23457845712802688    [人妖]    4 1    play.zol.com.cn/detail/1659_1.html
00:00:00    4625224675315291    [印尼排华是怎么回事]    2 6    zhidao.baidu.com/question/47218514
00:00:00    048731119953599966    [东莞市塘厦新泰塑胶五金厂]    10 44    www.hi-b2b.com/product/17w47204/index.shtml
00:00:00    48530765688455246    [胡其美]    26 3    www.gotostreet.com/bbs/ShowPost.Asp?ID=121

cat weblog.log|tr "\t" "," > weblog2.log

[kfk@bigdata-pro01 datas]$ cat weblog.log|tr "\t" "," > weblog2.log
[kfk@bigdata-pro01 datas]$ more weblog2.log 
?00:00:00,2982199073774412,[360安全卫士],8 3,download.it.com.cn/softweb/software/firewall/antivirus/20067/17938.html
00:00:00,07594220010824798,[哄抢救灾物资],1 1,news.21cn.com/social/daqian/2008/05/29/4777194_1.shtml
00:00:00,5228056822071097,[75810部队],14 5,www.greatoo.com/greatoo_cn/list.asp?link_id=276&title=%BE%DE%C2%D6%D0%C2%CE%C5
00:00:00,6140463203615646,[绳艺],62 36,www.jd-cd.com/jd_opus/xx/200607/706.html
00:00:00,8561366108033201,[汶川地震原因],3 2,www.big38.net/
00:00:00,23908140386148713,[莫衷一是的意思],1 2,www.chinabaike.com/article/81/82/110/2007/2007020724490.html
00:00:00,1797943298449139,[星梦缘全集在线观看],8 5,www.6wei.net/dianshiju/????\xa1\xe9|????do=index
00:00:00,00717725924582846,[闪字吧],1 2,www.shanziba.com/
00:00:00,41416219018952116,[霍震霆与朱玲玲照片],2 6,bbs.gouzai.cn/thread-698736.html
00:00:00,9975666857142764,[电脑创业],2 2,ks.cn.yahoo.com/question/1307120203719.html
00:00:00,21603374619077448,[111aa图片],1 6,www.fotolog.com.cn/tags/aa111
00:00:00,7423866288265172,[豆腐的制成],3 13,ks.cn.yahoo.com/question/1406051201894.html
00:00:00,0616877776407358,[tudou.com+禁播电影],2 9,topic.bindou.com/1487/
00:00:00,3933365481995287,[最佳受孕时间],6 3,ks.cn.yahoo.com/question/1407051001276.html
00:00:00,8242389147671512,[捷克民歌土风舞++教案],2 3,shwamlys.blog.sohu.com/76558184.html
00:00:00,8248403977107859,[pdf],1 1,download.it168.com/18/1805/13947/13947_3.shtml
00:00:00,6239728533154822,[喷嘭乐团lonely+day],7 9,www.songtaste.com/song/266563/
00:00:00,6551182914925117,[尼康相机报价],6 4,product.it168.com/list/b/03050171_1.shtml
00:00:00,2345161545038265,[哄抢救灾物资],2 1,pic.news.mop.com/gs/2008/0528/12985.shtml
00:00:00,06478452674857782,[1000],4 1,www.1000dy.cn/
00:00:00,23405445793591878,[剑荡天下+++展鹏],4 5,74.53.27.3/~xx4ucom/bbs/simple/index.php?t31744.html
00:00:00,23457845712802688,[人妖],4 1,play.zol.com.cn/detail/1659_1.html
00:00:00,4625224675315291,[印尼排华是怎么回事],2 6,zhidao.baidu.com/question/47218514
00:00:00,048731119953599966,[东莞市塘厦新泰塑胶五金厂],10 44,www.hi-b2b.com/product/17w47204/index.shtml
00:00:00,48530765688455246,[胡其美],26 3,www.gotostreet.com/bbs/ShowPost.Asp?ID=121