sed question

[bruce]

Hey guys..

Sed question.. should be simple, but after stack/net searches, lots or
trials.. can't seem to get it..

I've got a case

foo('txt')
foo("txt")

I'd like to have

foo('/dir1/txt')
foo("/dir1/txt")

Now. I do a simple sed search/replace if it just focuses on the txt, but
crafting a sed that uses the entire input as a search due to the parens
'()' is a bit painful!  Doing the sed using the ( for the ( wasn't quite
successful!

for just the txt..

sed -i 's/'txt'/'dir1/txt'/' *files.dat
sed -i 's/"txt"/"dir1/txt"/' *files.dat

these work...

any thoughts on how to handle the parens would be cool!

just irks me that I couldn't see what I missed.

thanks!

[Todor Petkov]

On Thu, Jul 21, 2016 at 3:00 PM, bruce  wrote:
> Hey guys..
>
> Sed question.. should be simple, but after stack/net searches, lots or
> trials.. can't seem to get it..
>
> I've got a case
>
> foo('txt')
> foo("txt")
>
> I'd like to have
>
> foo('/dir1/txt')
> foo("/dir1/txt")
>
> Now. I do a simple sed search/replace if it just focuses on the txt, but
> crafting a sed that uses the entire input as a search due to the parens '()'
> is a bit painful!  Doing the sed using the ( for the ( wasn't quite
> successful!
>
> for just the txt..
>
> sed -i 's/'txt'/'dir1/txt'/' *files.dat
> sed -i 's/"txt"/"dir1/txt"/' *files.dat
>
> these work...
>
> any thoughts on how to handle the parens would be cool!
>
> just irks me that I couldn't see what I missed.
>
> thanks!

Try like this:

cat /tmp/1.txt
foo('/dir1/txt')

sed -e 's#'txt'#'dir1/txt'#' /tmp/1.txt
foo('/dir1/dir1/txt')

Or:
sed -e  's/'txt'/'dir1\/txt'/' /tmp/1.txt

You need to escape the / in the replacement string.

[bruce]

Hey Tudor, and others..

The test sed I posted works for doing a search/replace of the text inside
the parens...
> foo('txt')
> foo("txt")

however.. if i wanted to craft a sed that uses the entire >>foo('txt')<< as
the search.. then I run into the need to handle the parens.. and that's the
issue..

this doesn't work

sed -i 's/foo('txt')/foo('/dir1/txt') /' *files.dat
sed -i 's/foo('txt')/foo('/dir1/txt')/' *files.dat

thanks

On Thu, Jul 21, 2016 at 8:14 AM, Todor Petkov 
wrote:
> On Thu, Jul 21, 2016 at 3:00 PM, bruce  wrote:
> > Hey guys..
> >
> > Sed question.. should be simple, but after stack/net searches, lots or
> > trials.. can't seem to get it..
> >
> > I've got a case
> >
> > foo('txt')
> > foo("txt")
> >
> > I'd like to have
> >
> > foo('/dir1/txt')
> > foo("/dir1/txt")
> >
> > Now. I do a simple sed search/replace if it just focuses on the txt, but
> > crafting a sed that uses the entire input as a search due to the parens
>
> '()'
> > is a bit painful!  Doing the sed using the ( for the ( wasn't quite
> > successful!
> >
> > for just the txt..
> >
> > sed -i 's/'txt'/'dir1/txt'/' *files.dat
> > sed -i 's/"txt"/"dir1/txt"/' *files.dat
> >
> > these work...
> >
> > any thoughts on how to handle the parens would be cool!
> >
> > just irks me that I couldn't see what I missed.
> >
> > thanks!
>
> Try like this:
>
> cat /tmp/1.txt
> foo('/dir1/txt')
>
> sed -e 's#'txt'#'dir1/txt'#' /tmp/1.txt
> foo('/dir1/dir1/txt')
>
> Or:
> sed -e  's/'txt'/'dir1\/txt'/' /tmp/1.txt
> You need to escape the / in the replacement string.
>
> users mailing list
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> To unsubscribe or change subscription options:
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[Todor Petkov]

On Thu, Jul 21, 2016 at 3:26 PM, bruce  wrote:
> Hey Tudor, and others..
>
> The test sed I posted works for doing a search/replace of the text inside
> the parens...
> > foo('txt')
> > foo("txt")
>
> however.. if i wanted to craft a sed that uses the entire >>foo('txt')<< as
> the search.. then I run into the need to handle the parens.. and that's the
> issue..
>
> this doesn't work
>
> sed -i 's/foo('txt')/foo('/dir1/txt') /' *files.dat
> sed -i 's/foo('txt')/foo('/dir1/txt')/' *files.dat

cat /tmp/1.txt ; echo; sed -e
"s#foo('txt')#foo('/dir1/txt')#;s#foo("txt")#foo('/dir1/txt')#"
/tmp/1.txt
foo('txt')
foo("txt")

foo('/dir1/txt')
foo('/dir1/txt')

This?

[bruce]

hey todor..

I'll give it a try.. I was thinking it's the parens.. overlooked the fact
that i introduced '/' in the replace.. which might have caused issue.. but
the '/' was successful in the test with just the text inside the ()..

On Thu, Jul 21, 2016 at 8:59 AM, Todor Petkov 
wrote:
> On Thu, Jul 21, 2016 at 3:26 PM, bruce  wrote:
> > Hey Tudor, and others..
> >
> > The test sed I posted works for doing a search/replace of the text inside
> > the parens...
> > > foo('txt')
> > > foo("txt")
> >
> > however.. if i wanted to craft a sed that uses the entire >>foo('txt')<<
>
> as
> > the search.. then I run into the need to handle the parens.. and that's
>
> the
> > issue..
> >
> > this doesn't work
> >
> > sed -i 's/foo('txt')/foo('/dir1/txt') /' *files.dat
> > sed -i 's/foo('txt')/foo('/dir1/txt')/' *files.dat
>
> cat /tmp/1.txt ; echo; sed -e
> "s#foo('txt')#foo('/dir1/txt')#;s#foo("txt")#foo('/dir1/txt')#"
> /tmp/1.txt
> foo('txt')
> foo("txt")
>
> foo('/dir1/txt')
> foo('/dir1/txt')
> This?
>
> users mailing list
> [e-mail]
> To unsubscribe or change subscription options:
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> Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
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> Have a question? Ask away: http://ask.fedoraproject.org

[Tom Rivers]

On 7/21/2016 8:26 AM, bruce wrote:
> Hey Tudor, and others..
>
> The test sed I posted works for doing a search/replace of the text 
> inside the parens...
> > foo('txt')
> > foo("txt")
>
> however.. if i wanted to craft a sed that uses the entire
> > > foo('txt')<< as the search.. then I run into the need to handle the
>
> parens.. and that's the issue..
>
> this doesn't work
>
> sed -i 's/foo('txt')/foo('/dir1/txt') /' *files.dat
> sed -i 's/foo('txt')/foo('/dir1/txt')/' *files.dat

If you swap out the apostrophes with quotation marks it should work - 
Bash is what I think is getting in your way.  On Fedora 23 I have the 
following in a text file called test.txt:

The 'test' case for changing foo('txt') to foo("txt") without changing 
bar('txt') to bar("txt") example.

I used the following sed command:

sed -e "s/foo('txt')/foo("txt")/g" test.txt

This is the output:

The 'test' case for changing foo("txt") to foo("txt") without changing 
bar('txt') to bar("txt") example.

Tom

[Tethys]

On Thu, Jul 21, 2016 at 1:00 PM, bruce  wrote:
> Now. I do a simple sed search/replace if it just focuses on the txt, but
> crafting a sed that uses the entire input as a search due to the parens '()'
> is a bit painful!  Doing the sed using the ( for the ( wasn't quite
> successful!

localhost:~% sed 's,^foo((.)txt(.))$,foo(\1/dir1/txt\2),' << EOF
foo('txt')
foo("txt")
EOF
foo('/dir1/txt')
foo("/dir1/txt")

Tet

[bruce]

thanks.. guys..

just a brain screwup.. should be ok now.. thanks for the eyeballs..

owe you guys oj!

On Thu, Jul 21, 2016 at 11:01 AM, Tethys  wrote:
> On Thu, Jul 21, 2016 at 1:00 PM, bruce  wrote:
> > Now. I do a simple sed search/replace if it just focuses on the txt, but
> > crafting a sed that uses the entire input as a search due to the parens
>
> '()'
> > is a bit painful!  Doing the sed using the ( for the ( wasn't quite
> > successful!
>
> localhost:~% sed 's,^foo((.)txt(.))$,foo(\1/dir1/txt\2),' << EOF
> foo('txt')
> foo("txt")
> EOF
> foo('/dir1/txt')
> foo("/dir1/txt")
>
> Tet
>
> --
> I saw cout being shifted "Hello world" times to the left and stopped
> right there. — Steve Gonedes
> --
> users mailing list
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> Have a question? Ask away: http://ask.fedoraproject.org

[Jon LaBadie]

On Thu, Jul 21, 2016 at 08:00:44AM -0400, bruce wrote:
> Hey guys..
>
> Sed question.. should be simple, but after stack/net searches, lots or
> trials.. can't seem to get it..
>
> I've got a case
>
> foo('txt')
> foo("txt")
>
> I'd like to have
>
> foo('/dir1/txt')
> foo("/dir1/txt")
>
> Now. I do a simple sed search/replace if it just focuses on the txt, but
> crafting a sed that uses the entire input as a search due to the parens
> '()' is a bit painful!  Doing the sed using the ( for the ( wasn't quite
> successful!
>
> for just the txt..
>
> sed -i 's/'txt'/'dir1/txt'/' *files.dat
> sed -i 's/"txt"/"dir1/txt"/' *files.dat
>
> these work...
>
> any thoughts on how to handle the parens would be cool!
>
> just irks me that I couldn't see what I missed.

Two more possibilities (the short output lines were unchanged):

# search for entire string, replace only txt
$ sed '/foo(.txt.)/s,txt,/dir/txt,' tst.txt
foo('/dir/txt')
bar('txt')
foo('bar')
foo("/dir/txt")
bar("txt")
foo("bar")

# capture unchanging parts as \1 and \2 using grouping ( & )
$ sed 's,(foo(.)txt(.)),\1/dir/txt\2,' tst.txt
foo('/dir/txt')
bar('txt')
foo('bar')
foo("/dir/txt")
bar("txt")
foo("bar")