bash 在bash shell中用逗号删除字符串中的空格
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Remove blank spaces with comma in a string in bash shell
提问by user1293997
I would like to replace blank spaces/white spaces in a string with commas.
我想用逗号替换字符串中的空格/空格。
STR1=This is a string
to
到
STR1=This,is,a,string
回答by Mat
Without using external tools:
不使用外部工具：
echo ${STR1// /,}
Demo:
演示：
$ STR1="This is a string"
$ echo ${STR1// /,}
This,is,a,string
See bash: Manipulating strings.
请参阅bash：操作字符串。
回答by anubhava
Just use sed:
只需使用 sed：
echo $STR1 | sed 's/ /,/g'
or pure BASH way::
或纯 BASH 方式::
echo ${STR1// /,}
回答by Kent
kent$ echo "STR1=This is a string"|awk -v OFS="," '='
STR1=This,is,a,string
Note:
笔记：
if there are continued blanks, they would be replaced with a single comma. as example above shows.
如果有连续的空格，它们将替换为一个逗号。如上例所示。
回答by potong
This might work for you:
这可能对你有用：
echo 'STR1=This is a string' | sed 'y/ /,/'
STR1=This,is,a,string
or:
或者：
echo 'STR1=This is a string' | tr ' ' ','
STR1=This,is,a,string
回答by shellter
How about
怎么样
STR1="This is a string"
StrFix="$( echo "$STR1" | sed 's/[[:space:]]/,/g')"
echo "$StrFix"
**output**
This,is,a,string
If you have multiple adjacent spaces in your string and what to reduce them to just 1 comma, then change the sedto
如果你在你的字符串多个相邻的空间和如何减少他们仅有1逗号，然后更改sed到
STR1="This is a string"
StrFix="$( echo "$STR1" | sed 's/[[:space:]][[:space:]]*/,/g')"
echo "$StrFix"
**output**
This,is,a,string
I'm using a non-standard sed, and so have used ``[[:space:]][[:space:]]*to indicate one or more "white-space" characters (including tabs, VT, maybe a few others). In a modern sed, I would expect[[:space:]]+` to work as well.
我使用的是非标准 sed，因此也使用了“[[:space:]][[:space:]]* to indicate one or more "white-space" characters (including tabs, VT, maybe a few others). In a modern sed, I would expect[[:space:]]+”。
回答by Teja
STR1=`echo $STR1 | sed 's/ /,/g'`
