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Old 07-29-2010, 12:40 AM   #1
Registered: Jun 2009
Posts: 30

Rep: Reputation: 18
Shell Script problem with sed

i have a shell script which will go in some folders using for loop, build some programs with gcc and zip the output.
then i have to paste the file of that zip file into a yml file which will be further used by a ruby watir script.
zip -rq /uploads/$PROJECT_FOLDER/build/Release-iphoneos/ /uploads/$PROJECT_FOLDER/build/Release-iphoneos/
sed -ie 's|Bundle_Itunes_File_Binary: ""|Bundle_Itunes_File_Binary: "/uploads/$PROJECT_FOLDER/build/Release-iphoneos/"|g' submit_itunes_app.yml
but when i try to paste the path of zip file into that submit_itunes_app.yml it doesnt work..
it is always replaced by
Bundle_Itunes_File_Binary: "/uploads/$PROJECT_FOLDER/build/Release-iphoneos/"

Help me where i am going wrong.

also there are some files in this format
Bundle_Itunes_File_Large_1: "image_big121111.png"
nd i want to replace the file name with /path/to/directory/filename

Thanks in advance

Last edited by vikki; 07-29-2010 at 12:41 AM.
Old 07-29-2010, 01:34 AM   #2
Registered: Jun 2010
Posts: 361

Rep: Reputation: 59
The shell doesn't subsitute any variables inside single quotes. You have to use double quotes for your sed command if you want that (escaping any double quotes and possibly other problematic characters inside using backslashes)
Old 07-29-2010, 01:46 AM   #3
Registered: May 2006
Location: Brisbane, Australia
Distribution: linux
Posts: 153

Rep: Reputation: 44
Within single quotes $var substitutions do not happen!

Around the string $PROJECT_FOLDER change it to
so that you leave single quotes, enter double quotes, substitute the varaible then return back into single quotes.

the line then becomes

sed -ie 's|Bundle_Itunes_File_Binary: ""|Bundle_Itunes_File_Binary: "/uploads/'"$PROJECT_FOLDER"'/build/Release-iphoneos/"|g' submit_itunes_app.yml

NOTE you should also have double quotes around your other use of variable assignment to handle spaces and other things...


should be


Similarly in the use of the variable in the zip command.

Not placing variables in quotes is asking for trouble in the future with any input containing white space.

Last edited by A.Thyssen; 07-29-2010 at 01:48 AM.
Old 07-29-2010, 01:50 AM   #4
Registered: Jun 2009
Posts: 30

Original Poster
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Perfect thanks that worked..
you saved my day..

Now how can i do this in the same file

Bundle_Itunes_File_Large_1: "image_big121111.png"


Bundle_Itunes_File_Large_1: "/path/to/directory/image_big121111.png"

for all the files.. as i have dozens of that.. greping each one and changing in all of them one by one will be a pain
Old 07-29-2010, 01:58 AM   #5
Registered: May 2006
Location: Brisbane, Australia
Distribution: linux
Posts: 153

Rep: Reputation: 44
Dont forget the quotes around all the other uses of variables.

Otherwise when you come to your filenames with spaces in them you will get trouble!!!!


bash, sed

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