我有以下文件列表:
lab-1:/tmp/tmp.NMFaDO# ls
webserver.123.net.1970-01-01.csv webserver.123.net.2016-10-01.csv webserver.123.net.2017-10-01.csv
webserver.123.net.2015-11-01.csv webserver.123.net.2016-11-01.csv webserver.123.net.2017-11-01.csv
webserver.123.net.2015-12-01.csv webserver.123.net.2016-12-01.csv webserver.123.net.2017-12-01.csv
webserver.123.net.2016-01-01.csv webserver.123.net.2017-01-01.csv webserver.123.net.2018-01-01.csv
webserver.123.net.2016-02-01.csv webserver.123.net.2017-02-01.csv webserver.123.net.2018-02-01.csv
webserver.123.net.2016-03-01.csv webserver.123.net.2017-03-01.csv webserver.123.net.current.csv
webserver.123.net.2016-04-01.csv webserver.123.net.2017-04-01.csv webserver.123.net.db.done
webserver.123.net.2016-05-01.csv webserver.123.net.2017-05-01.csv webserver.123.net.records_to_delete.txt
webserver.123.net.2016-06-01.csv webserver.123.net.2017-06-01.csv sip2.ci2.lab.jwm2.net.2018-02-01.csv
webserver.123.net.2016-07-01.csv webserver.123.net.2017-07-01.csv sip2.ci2.lab.jwm2.net.db.done
webserver.123.net.2016-08-01.csv webserver.123.net.2017-08-01.csv sip2.ci2.lab.jwm2.net.records_to_delete.txt
webserver.123.net.2016-09-01.csv webserver.123.net.2017-09-01.csv
在bash脚本中,我需要遍历此列表并仅提取文件名的日期部分。我设法弄清楚了如何
使用此命令从包含文件的文件夹内部执行此操作:
lab-1:/tmp/tmp.NMFaDO# ls webserver.123.net*.csv | sed 's/webserver.123.net.\(.*\)\.csv/\1/'
1970-01-01
2015-11-01
2015-12-01
2016-01-01
2016-02-01
2016-03-01
2016-04-01
2016-05-01
2016-06-01
2016-07-01
2016-08-01
2016-09-01
2016-10-01
2016-11-01
2016-12-01
2017-01-01
2017-02-01
2017-03-01
2017-04-01
2017-05-01
2017-06-01
2017-07-01
2017-08-01
2017-09-01
2017-10-01
2017-11-01
2017-12-01
2018-01-01
2018-02-01
current
但是我似乎无法在bash脚本中使用逻辑:
dir=/tmp/tmp.NMFaDO
server=webserver.123.net
for csvfile in $dir/$server.*.csv
do
echo $csvfile | sed 's/$dir\/$server.\(.*\)\.csv/\1/'
done
目前,它正在打印出名称的完整路径,如下所示:
/tmp/tmp.NMFaDO/webserver.123.net.1970-01-01.csv
/tmp/tmp.NMFaDO/webserver.123.net.2015-11-01.csv
ETC。
有人可以告诉我我的bash脚本中缺少什么吗?谢谢。
请注意您使用的引号:
dir=/tmp/tmp.NMFaDO
server=webserver.123.net
for csvfile in $dir/$server.*.csv
do
echo "$csvfile" | sed "s|$dir/$server.\(.*\)\.csv|\1|"
done
“双引号”包含空格/元字符,每字面每一个扩展:"$var"
,"$(command "$var")"
,"${array[@]}"
,"a & b"
。使用'single quotes'
代码或文字$'s: 'Costs $5 US'
,ssh host 'echo "$HOSTNAME"'
。参见
http://mywiki.wooledge.org/
行情http://mywiki.wooledge.org/Arguments
http://wiki.bash-hackers.org/syntax/words
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我来说两句