In a bash script, spaces can be quickly removed as follows,
echo ${myvar// } # this will remove all spaces in $myvar
Let us look at a detailed example,
[email protected]:~$ myvar=" "
[email protected]:~$ echo $myvar
[email protected]:~$
Empty line. Let us make it more visible:
[email protected]:~$ echo START${myvar}END
START END
[email protected]:~$ echo START${myvar//}END
START END
[email protected]:~$
Now, let us replace all spaces in it
[email protected]:~$ echo START${myvar//}END
START END
[email protected]:~$ echo START${myvar// }END
STARTEND
[email protected]:~$
One more example, all together
[email protected]:~$ myvar="codetryout.com"
[email protected]:~$
[email protected]:~$ echo ${myvar// }
codetryoutinfo
[email protected]:~$