请问几个关于Sed的问题 - 未名空间MITBBS历史存档

国际科技财经博客移民网络热点娱乐民生时事公众号

Redian新闻

>未名空间

>Unix - 噫吁兮，危乎高哉

请问几个关于Sed的问题

请问几个关于Sed的问题# Unix - 噫吁兮，危乎高哉

s*a2002-12-08 08:12

1 楼

Make a new file which contains all of the lines that do not
contain a numeric character.
我用sed -n '/[0-9]/!p' filename 可是不work
Make a new file which replaces any line with a numeric character
with a line of three X's "XXX"
这个是怎么弄呢？跟substitute又不是一回事，查notes也查不到
Make a new file which adds a new line (three X's) before each line
that contains a numeric character.
Make a new file which contains all lines that have a capital alphabetical
character in the original file.
偶notes ， google了半天都查不到，大侠帮帮忙。

a*s2002-12-08 08:12

2 楼

I use tcsh.

sed -e /[0-9]/d filename
don't know how to just use only line to do it.
don't know how to just use only line to do it.
I don't know how to easily express non-capital alphabetical character
in "sed".
Is "grep" acceptable?
grep "^[A-Z]" filename

【在 s******a 的大作中提到】

: Make a new file which contains all of the lines that do not
: contain a numeric character.
: 我用sed -n '/[0-9]/!p' filename 可是不work
: Make a new file which replaces any line with a numeric character
: with a line of three X's "XXX"
: 这个是怎么弄呢？跟substitute又不是一回事，查notes也查不到
: Make a new file which adds a new line (three X's) before each line
: that contains a numeric character.
: Make a new file which contains all lines that have a capital alphabetical
: character in the original file.