shell脚本echo输出不换行功能增强实例
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2022-04-25 15:10:09
这是第8/101个脚本
there are as many ways to solve this quirky echo problem as there are pag...
这是第8/101个脚本
there are as many ways to solve this quirky echo problem as there are pages in this book. one of my favorites is very succinct:
function echon { echo "$*" | awk '{ printf "%s" $0 }' }
you may prefer to avoid the overhead incurred when calling the awk command, however, and if you have a user-level command called printf you can use it instead:
echon() { printf "%s" "$*" }
but what if you don't have printf and you don't want to call awk? then use the tr command:
echon() { echo "$*" | tr -d '\n' }
this method of simply chopping out the carriage return with tr is a simple and efficient solution that should be quite portable.
这个脚本很简单,就是可以用3种不同的函数(方法)来实现,输出后不换行。
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