问题
I'm having some trouble with the sed command :
I'd like to replace in a string, a single quote by two single quote
Here's my string :
04CA07807800106109XE00187200000081960 NI 0780643442 178'0700
I used this sed command to replace the single quote :
line=`echo $line | sed "s/'/''/g"`
The result is
04CA07807800106109XE00187200000081960 NI 0780643442 178''0700
As you can see, the single quote is properly replaced by two single quotes.
But I lost all the spaces between each character of my string and I really need to keep them.
Is there a way to keep those spaces with the sed command ?
I tried with a tr command and i got the same result.
Thank you for your help.
回答1:
Problem is not sed command but your unquoted variable. Use:
line=`echo "$line" | sed "s/'/''/g"`
Unquoted variable causes word splitting which results in multiple parameters to echo, resulting in single spaced words.
来源：https://stackoverflow.com/questions/37306796/keep-spaces-when-using-sed-command-in-kornshell-script