How to change the signature of all the functions in my scripts...
 

Hi all,

I am new to this community and i dont have much knowledge to linux shell scripting....this question may be a simple one...

I was trying to write a script to change the signature of the all the methods in a set of scripts.. here is a sample of the same :

old signature :

methodname()
{
method-body
}

New signature:

function methodname
{
method-body
}


That is i need to insert "function" keyword in front of the methodname and remove the () after the methodname.
Can anyone help me out with this.
Thanks in advance..

Well you could do it with sed-- sed -i 's/^methodname()$/function methodname/' filename.sh

How about

This will also change it if the line to be edited has trailing spaces.
Make a backup first, I did not test the command.

[EDIT]
P.S.: The above command will only work correctly, if the file in question only contains old-signature-methods. Let us know if your files have 'mixed' signature methods.

Thanks
 

Thanks for the suggestions....i tried

sed -i 's/^\([^(]*\)() *$/function \1/' filename

it worked :)
Thanks once again...


i have one more question.....

i am trying to find all the files having
#!/bin/ksh
as their first line and store the list of all such files in a varaible(or array).this i need so that i can change the signature of the methods(of which i have talked earlier)in all the scripts present in my project folder.


example :
i have a folder tests
inside this folder i have many files and directories..

abc.sh
a1.sh
b1 (shell script)
dl (directory)
ab.xml

i want to run my script which changes the signature of all the methods in all the scripts present in the directory tests.

I tried the following command
#!/bin/ksh

DIR="."

files=$('find . -exec grep -l '#!/bin/ksh' {}\;')

for X in $files
do
sed -i 's/^\([^(]*\)() *$/function \1/' $X
done


This gives the following error:
./trail.sh[5]: find . -exec grep -l #!/bin/ksh {}\;: not found [No such file or directory]

Can anyone please guide me how to do this...

Thanks in advance..

You are trying to use un-escaped single quotes inside. The simple solution is to remove the outer set of single quotes, as they aren't necessary (at least in bash, not certain about ksh it's a long time since I used it). E.g.:
I also added a "-type f" because I imagine you only want to grep files.