Re: sed substitution that contains forward slash
Craig White wrote:
On Tue, 2009-03-31 at 20:16 -0400, Todd Zullinger wrote:
Craig White wrote:
subtitle...fun with sed
I have a list of changes to make to a file...
dc rc
- ---
15T6145VDELETED
NATL19502 DELETED
Q10MR11/FL12V DELETED
Q1500T3/CL120 DELETED
and things work until I get to the 3rd item which has a forward
slash and it fails to substitute with commands like below...
sed -i "s%${dc}%${rc}%g" ARsalesorderdetails.csv
and
sed -i "s/${dc}/${rc}/g" ARsalesorderdetails.csv
The latter producing error on screen...
sed: -e expression #1, char 17: unknown option to `s'
While the former simply doesn't complain but doesn't make the change
either.
Hmm, it should work using a delimeter other than '/' or escaping the
'/'. Escaping the '/' is a bit more of a pain than just changing
delimeters, as long as you know that whatever delimeter you pick won't
be in the strings you are substituting.
It seems to work for me:
$ dc="Q10MR11/FL12V"; rc=DELETED; echo "dc=${dc}"; echo "rc=${rc}"; \
echo "This is some Q10MR11/FL12V text." | sed "s%${dc}%${rc}%g"
dc=Q10MR11/FL12V
rc=DELETED
This is some DELETED text.
Interesting...using the vertical bar as the regex separator worked where
the % failed for me.
I never hit this before, but like another poster, I always use "#" unless it
conflicts in which case I use "@" or "|" instead. I don't see how this would be
an issue *unless* you have jobs running in the background of this shell.
Remember that "%" is semi-special to the shell, if you start a background job,
you can kill it with
kill %1
or whatever number shows up from the "jobs" command. However, it shouldn't do
that unless you are using a built-in command like "fg" or "kill" and I suspect
that is the only place that %number sequence is special.
If you get an answer let us know, I was unable to replicate your problem,
although I doubt I use the "-i" option once in a decade with sed. I sort of
remembered it was there, but had to look to check operation (it takes a suffix).
If you can still get the % to fail, just for grins try putting -e before the
command.
--
Bill Davidsen
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
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Re: sed substitution that contains forward slash
On Wednesday 01 April 2009 01:11:47 David Burns wrote:
> On Tue, Mar 31, 2009 at 1:37 PM, Craig White wrote:
> > subtitle...fun with sed
> >
> > I have a list of changes to make to a file...
> >
> > dc rc
> > - ---
> > 15T6145V DELETED
> > NATL19502 DELETED
> > Q10MR11/FL12V DELETED
> > Q1500T3/CL120 DELETED
> >
> > and things work until I get to the 3rd item which has a forward slash
> > and it fails to substitute with commands like below...
> >
> > sed -i "s%${dc}%${rc}%g" ARsalesorderdetails.csv
> > and
> > sed -i "s/${dc}/${rc}/g" ARsalesorderdetails.csv
> >
> > The latter producing error on screen...
> > sed: -e expression #1, char 17: unknown option to `s'
> >
> > While the former simply doesn't complain but doesn't make the change
> > either.
> >
> > Is there a way to coerce sed to identify & replace strings with a /
> > inside?
>
> I don't think it is sed that is giving you a problem:
>
> $ echo "Q10MR11/FL12V "|sed "s|Q10MR11/FL12V|DELETED|"
> DELETED
He didn't use | he used /. You've inadvertently offered him the solution though.
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Re: sed substitution that contains forward slash
Craig White wrote:
On Tue, 2009-03-31 at 20:16 -0400, Todd Zullinger wrote:
Craig White wrote:
subtitle...fun with sed
I have a list of changes to make to a file...
dc rc
- ---
15T6145VDELETED
NATL19502 DELETED
Q10MR11/FL12V DELETED
Q1500T3/CL120 DELETED
and things work until I get to the 3rd item which has a forward
slash and it fails to substitute with commands like below...
sed -i "s%${dc}%${rc}%g" ARsalesorderdetails.csv
and
sed -i "s/${dc}/${rc}/g" ARsalesorderdetails.csv
The latter producing error on screen...
sed: -e expression #1, char 17: unknown option to `s'
While the former simply doesn't complain but doesn't make the change
either.
Hmm, it should work using a delimeter other than '/' or escaping the
'/'. Escaping the '/' is a bit more of a pain than just changing
delimeters, as long as you know that whatever delimeter you pick won't
be in the strings you are substituting.
It seems to work for me:
$ dc="Q10MR11/FL12V"; rc=DELETED; echo "dc=${dc}"; echo "rc=${rc}"; \
echo "This is some Q10MR11/FL12V text." | sed "s%${dc}%${rc}%g"
dc=Q10MR11/FL12V
rc=DELETED
This is some DELETED text.
Interesting...using the vertical bar as the regex separator worked where
the % failed for me.
Thanks
Craig
You should be able to do:
(so as long as ' is not part of the input stream)
sed -i 's%'${dc}'%'${rc}'%g' ARsalesorderdetails.csv
I personally use delimiters as # or | depending
on the input string stream
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Re: sed substitution that contains forward slash
Craig White wrote:
subtitle...fun with sed
I have a list of changes to make to a file...
dc rc
- ---
15T6145VDELETED
NATL19502 DELETED
Q10MR11/FL12V DELETED
Q1500T3/CL120 DELETED
and things work until I get to the 3rd item which has a forward slash
and it fails to substitute with commands like below...
sed -i "s%${dc}%${rc}%g" ARsalesorderdetails.csv
and
sed -i "s/${dc}/${rc}/g" ARsalesorderdetails.csv
The latter producing error on screen...
sed: -e expression #1, char 17: unknown option to `s'
While the former simply doesn't complain but doesn't make the change
either.
Is there a way to coerce sed to identify & replace strings with a /
inside?
Craig
The second fails because in the file where there is
a '/' in the stream, sed sees more delimiters such as:
s//Q1500T3/CL120 DELETED/g
^ (extra delimiter)
and so fails.
Your use of '%" as a sed delimiter works so as long as %
is not part of the sed stream.
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Re: sed substitution that contains forward slash
On Tue, 2009-03-31 at 20:16 -0400, Todd Zullinger wrote:
> Craig White wrote:
> > subtitle...fun with sed
> >
> > I have a list of changes to make to a file...
> >
> > dc rc
> > - ---
> > 15T6145VDELETED
> > NATL19502 DELETED
> > Q10MR11/FL12V DELETED
> > Q1500T3/CL120 DELETED
> >
> > and things work until I get to the 3rd item which has a forward
> > slash and it fails to substitute with commands like below...
> >
> > sed -i "s%${dc}%${rc}%g" ARsalesorderdetails.csv
> > and
> > sed -i "s/${dc}/${rc}/g" ARsalesorderdetails.csv
> >
> > The latter producing error on screen...
> > sed: -e expression #1, char 17: unknown option to `s'
> >
> > While the former simply doesn't complain but doesn't make the change
> > either.
>
> Hmm, it should work using a delimeter other than '/' or escaping the
> '/'. Escaping the '/' is a bit more of a pain than just changing
> delimeters, as long as you know that whatever delimeter you pick won't
> be in the strings you are substituting.
>
> It seems to work for me:
>
> $ dc="Q10MR11/FL12V"; rc=DELETED; echo "dc=${dc}"; echo "rc=${rc}"; \
> echo "This is some Q10MR11/FL12V text." | sed "s%${dc}%${rc}%g"
> dc=Q10MR11/FL12V
> rc=DELETED
> This is some DELETED text.
Interesting...using the vertical bar as the regex separator worked where
the % failed for me.
Thanks
Craig
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Re: sed substitution that contains forward slash
On Tue, 2009-03-31 at 14:11 -1000, David Burns wrote:
> On Tue, Mar 31, 2009 at 1:37 PM, Craig White wrote:
> > subtitle...fun with sed
> >
> > I have a list of changes to make to a file...
> >
> > dc rc
> > - ---
> > 15T6145VDELETED
> > NATL19502 DELETED
> > Q10MR11/FL12V DELETED
> > Q1500T3/CL120 DELETED
> >
> > and things work until I get to the 3rd item which has a forward slash
> > and it fails to substitute with commands like below...
> >
> > sed -i "s%${dc}%${rc}%g" ARsalesorderdetails.csv
> > and
> > sed -i "s/${dc}/${rc}/g" ARsalesorderdetails.csv
> >
> > The latter producing error on screen...
> > sed: -e expression #1, char 17: unknown option to `s'
> >
> > While the former simply doesn't complain but doesn't make the change
> > either.
> >
> > Is there a way to coerce sed to identify & replace strings with a /
> > inside?
> >
>
> I don't think it is sed that is giving you a problem:
>
> $ echo "Q10MR11/FL12V "|sed "s|Q10MR11/FL12V|DELETED|"
> DELETED
>
> Perhaps bash is not resolving your use of the ${dc} and ${rc}
> variables as you expect. Since you do not include the full string of
> commands and I never use ${}, I don't know what the problem is.
> Dave
you could be right...my problem is I can't enclose the sed string in
single quotes because the variables won't expand and I find that just
doing this...
sed -i "s|$dc|$rc|g" ARsalesorderdetails.csv
fails and still leaves me with this...
1,6066,"Q1500T3/CL/120V",2," 6.99 ",2,,,"2007-01-09",1,,,
so I'm strugging with various ways...
sed -i "s|$(dc)|$(rc)|g" ARsalesorderdetails.csv # doesn't work
or the curly braces to try to keep the string together
Craig
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Re: sed substitution that contains forward slash
Craig White wrote:
> subtitle...fun with sed
>
> I have a list of changes to make to a file...
>
> dc rc
> - ---
> 15T6145VDELETED
> NATL19502 DELETED
> Q10MR11/FL12V DELETED
> Q1500T3/CL120 DELETED
>
> and things work until I get to the 3rd item which has a forward
> slash and it fails to substitute with commands like below...
>
> sed -i "s%${dc}%${rc}%g" ARsalesorderdetails.csv
> and
> sed -i "s/${dc}/${rc}/g" ARsalesorderdetails.csv
>
> The latter producing error on screen...
> sed: -e expression #1, char 17: unknown option to `s'
>
> While the former simply doesn't complain but doesn't make the change
> either.
Hmm, it should work using a delimeter other than '/' or escaping the
'/'. Escaping the '/' is a bit more of a pain than just changing
delimeters, as long as you know that whatever delimeter you pick won't
be in the strings you are substituting.
It seems to work for me:
$ dc="Q10MR11/FL12V"; rc=DELETED; echo "dc=${dc}"; echo "rc=${rc}"; \
echo "This is some Q10MR11/FL12V text." | sed "s%${dc}%${rc}%g"
dc=Q10MR11/FL12V
rc=DELETED
This is some DELETED text.
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Re: sed substitution that contains forward slash
On Tue, Mar 31, 2009 at 1:37 PM, Craig White wrote:
> subtitle...fun with sed
>
> I have a list of changes to make to a file...
>
> dc rc
> - ---
> 15T6145V DELETED
> NATL19502 DELETED
> Q10MR11/FL12V DELETED
> Q1500T3/CL120 DELETED
>
> and things work until I get to the 3rd item which has a forward slash
> and it fails to substitute with commands like below...
>
> sed -i "s%${dc}%${rc}%g" ARsalesorderdetails.csv
> and
> sed -i "s/${dc}/${rc}/g" ARsalesorderdetails.csv
>
> The latter producing error on screen...
> sed: -e expression #1, char 17: unknown option to `s'
>
> While the former simply doesn't complain but doesn't make the change
> either.
>
> Is there a way to coerce sed to identify & replace strings with a /
> inside?
>
I don't think it is sed that is giving you a problem:
$ echo "Q10MR11/FL12V "|sed "s|Q10MR11/FL12V|DELETED|"
DELETED
Perhaps bash is not resolving your use of the ${dc} and ${rc}
variables as you expect. Since you do not include the full string of
commands and I never use ${}, I don't know what the problem is.
Dave
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