I need my script to edit and force write read

I have a script that alters lines in files. Which was working fine, but from hence forth, files will be read-only. I've tried changing wq to wq! (as I would in VI) but this has seemingly no effect. I've also tried "zz" which also did nothing.

I appreciate any help; thank you.

debug=false

## *****Put file name in quotes******
declare -a arr=("UF19905217" "UG19905218" )

##Put date in DDMMYYYY format for the date the message was original processed.
DATE="25082015"

## now loop through the above array
for i in "${arr[@]}"
do
    #if "$debug; then
        echo "Fix file named: Inbound_$i.msg"
        MSG="Inbound_$i.msg"
    #fi

    if [ ! -d "$MSG" ]; then
    # Enter what you would like changed here.  You can copy and paste this command for multiple changes

        #DATATYPE
        printf "%sn" ',s/<DataType>EDI</DataType>/<DataType>830</DataType>/g' wq | ed -s  /data1/Inbound/$DATE/$MSG        

        echo "Complete"
    else
            echo "Message not found or errored!"
    fi

done

---

If you have write access on the directory containing the file, you can delete them before rewriting them. If you have access to GNU sed, that is what sed -i will do.

I'm not familiar with ed , but I think the following sed command would do the equivalent of your command :

sed -i 's/<DataType>EDI</DataType>/<DataType>830</DataType>/g' /data1/Inbound/$DATE/$MSG 

Also, if you are not the owner of the file, the directory must not have the sticky bit set or you won't be able to delete the file.

---

Add this to your .vimrc:

" Allow saving of files as sudo when I forgot to start vim using   sudo.
cmap w!! w !sudo tee > /dev/null %

And then use ":w!!" and then ":q" instead of ":wq"

For a explanation of the command see this question

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