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sed on an environment variable ?

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# 1  
Old 12-15-2007
sed on an environment variable ?
Can I sed on an environment variable, even if I don't need to actually change said (hah, hah) variable? Something like:

sed s/xyz/abc/g $myvar

Then if I did need to change $myvar I could maybe do:

$myvar=`sed s/xyz/abc/g $myvar`
# 2  
Old 12-15-2007
So myvar is holding data?

I normally pipe through sed....

echo "$myvar" | sed ......
# 3  
Old 12-15-2007
That's what I was hoping to avoid
# 4  
Old 12-15-2007
With zsh, ksh93 and bash:

Code:
printf "%s\n" "${myvar//xyz/abc}"


With zsh you have vared Smilie

And if you insist to use sed:

with here string (if your shell supports them):

Code:
sed 's/xyz/abc/g'<<<$myvar

Otherwise you can use here document.
Last edited by radoulov; 12-15-2007 at 06:49 PM..
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