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Eliminating all redundancies,
sed 's@.*show=@@' showimages
The `-e` isn't needed in front of the first commandline script, and if
you're not trying to get the shell to further substitute in a
nontrivial string, put it in single quotes, and `sed`'s perfectly
capable of opening files itself, you don't need to get `cat` to do it
for you.
That doesn't error for me. I suspect you've got some editor or whatnot
that's not showing you what's really in the file, both my eyeballs and
my `sed` like what you've posted just fine, the tenth character of
what you posted is the second `@`, and can't provoke the message
you're seeing.
Also, your prose doesn't match your code: you say ~delete garbage
through "showimages~ but your command will delete garbage through
"show=".
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<p>Eliminating all redundancies,<br>
<br>
sed 's@.*show=@@' showimages<br>
<br>
The `-e` isn't needed in front of the first commandline script, and if<br>
you're not trying to get the shell to further substitute in a<br>
nontrivial string, put it in single quotes, and `sed`'s perfectly<br>
capable of opening files itself, you don't need to get `cat` to do it<br>
for you.<br>
<br>
That doesn't error for me. I suspect you've got some editor or whatnot<br>
that's not showing you what's really in the file, both my eyeballs and<br>
my `sed` like what you've posted just fine, the tenth character of<br>
what you posted is the second `@`, and can't provoke the message<br>
you're seeing.<br>
<br>
Also, your prose doesn't match your code: you say ~delete garbage<br>
through "showimages~ but your command will delete garbage through<br>
"show=".<br>
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