當|bc也在指令中的時候 如何"echo"不換 … - Linux

By Belly
at 2010-12-09T12:40
at 2010-12-09T12:40
Table of Contents
※ 引述《bbirthday (想念....)》之銘言:
: 例如說 我有以下指令在script裡
: x=100
: echo "scale=2; sqrt($x)/3" |bc
: echo " dollars"
我是覺得既然你都用了變數,那就用的徹底一點
#!/bin/bash
x=100
result=`echo "scale=2; sqrt($x)/3" | bc`
echo "$result" "dollars"
這樣應該會比用printf清楚一些~
--
: 例如說 我有以下指令在script裡
: x=100
: echo "scale=2; sqrt($x)/3" |bc
: echo " dollars"
我是覺得既然你都用了變數,那就用的徹底一點
#!/bin/bash
x=100
result=`echo "scale=2; sqrt($x)/3" | bc`
echo "$result" "dollars"
這樣應該會比用printf清楚一些~
--
Tags:
Linux
All Comments

By Callum
at 2010-12-10T12:15
at 2010-12-10T12:15

By Megan
at 2010-12-10T22:01
at 2010-12-10T22:01
Related Posts
當|bc也在指令中的時候 如何"echo"不換行?!

By Edward Lewis
at 2010-12-09T10:53
at 2010-12-09T10:53
請問如何尋找已用過, 特定的指令?

By William
at 2010-12-08T23:51
at 2010-12-08T23:51
msmtp如何設定信件主旨?

By Sierra Rose
at 2010-12-08T23:33
at 2010-12-08T23:33
裝了ubuntu後開不了機

By Adele
at 2010-12-08T21:17
at 2010-12-08T21:17
可以用自己架的SMTP寄信給外部的信箱嗎?

By Una
at 2010-12-08T20:39
at 2010-12-08T20:39