my homework for UNIX shell高手, thanks!!! - 未名空间MITBBS历史存档 | Redian News

国际科技财经博客移民网络热点娱乐民生时事公众号

>Unix - 噫吁兮，危乎高哉

>

my homework for UNIX shell高手, thanks!!!

my homework for UNIX shell高手, thanks!!!# Unix - 噫吁兮，危乎高哉

a*n2002-10-25 07:10

1 楼

how to access a table in file, e.g.
A FILE called "hobbies", with contents:
zhang3, fishing
li4, playing basketball
wang5, watching TV
...
how to write a shell program "table", can handle a table like "hobbies"
$ table hobbies
Mr. zhang3 loves fishing;
Mr. li4 loves playing basketball;
Mr. wang5 loves watching TV;
...

p*f2002-10-25 07:10

2 楼

if perl is allowed...
#!perl -p
s/^/Mr. / && s/,/ loving/ && s/$/;/ or die "data format error"

【在 a*******n 的大作中提到】

: how to access a table in file, e.g.
: A FILE called "hobbies", with contents:
: zhang3, fishing
: li4, playing basketball
: wang5, watching TV
: ...
: how to write a shell program "table", can handle a table like "hobbies"
: $ table hobbies
: Mr. zhang3 loves fishing;
: Mr. li4 loves playing basketball;

a*s2002-10-25 07:10

3 楼

【在 a*******n 的大作中提到】

: how to access a table in file, e.g.
: A FILE called "hobbies", with contents:
: zhang3, fishing
: li4, playing basketball
: wang5, watching TV
: ...
: how to write a shell program "table", can handle a table like "hobbies"
: $ table hobbies
: Mr. zhang3 loves fishing;
: Mr. li4 loves playing basketball;

d*g2002-10-25 07:10

4 楼

#!/bin/sh
cat $1 | while read line; do
NAME="`echo $line | cut -d, -f1`"
HOBBIE="`echo $line | cut -d, -f2`"
echo "Mr. $NAME loves $HOBBIE"
done
or
#!/bin/sh
cat $1 | while read line; do
echo "Mr. `echo $line | cut -d, -f1` loves `echo $line | cut -d, -f2`"
done

【在 a*******s 的大作中提到】

a*n2002-10-25 07:10

5 楼

Thanks!
高手高手..

【在 d*****g 的大作中提到】

: #!/bin/sh
: cat $1 | while read line; do
: NAME="`echo $line | cut -d, -f1`"
: HOBBIE="`echo $line | cut -d, -f2`"
: echo "Mr. $NAME loves $HOBBIE"
: done
: or
: #!/bin/sh
: cat $1 | while read line; do
: echo "Mr. `echo $line | cut -d, -f1` loves `echo $line | cut -d, -f2`"

k*j2002-10-25 07:10

6 楼

Another approach:
#!/bin/sh
sed -e 's/\(.*\), *\(.*\)/Mr. \1 loves \2;/' $1

-f2`"
"hobbies"

【在 a*******n 的大作中提到】

: Thanks!
: 高手高手..

f*r2002-10-25 07:10

7 楼

awk -F, '{printf "Mr. %s loves %s;\n",$1,$2}' hobbies > table

【在 a*******n 的大作中提到】

: how to access a table in file, e.g.
: A FILE called "hobbies", with contents:
: zhang3, fishing
: li4, playing basketball
: wang5, watching TV
: ...
: how to write a shell program "table", can handle a table like "hobbies"
: $ table hobbies
: Mr. zhang3 loves fishing;
: Mr. li4 loves playing basketball;

热点事件追踪

美国公司裁员Layoff

2024-01-28 18:01

2024-01-09 19:01

2024-01-07 18:01

美国堕胎权争议

2024-01-06 18:01

美国枪击案

2024-01-06 18:01

2023-12-13 17:12

2023-12-02 07:12

2023-11-26 18:11

中美航班重磅消息！每周85班，直飞更方便！

微软、亚马逊、谷歌大裁员！哪些科技和零售公司有缩减规模计划？

中国外长王毅：中美关系已经止跌回稳

脱轨事故造成20多人受伤联邦调查纽约市全部地铁系统

更多 2024-11-15 的新闻