It looks like you now have a working script. Here are a few comments that you may find useful in future projects:Also note that the command:

Code:

sed 's/#SOMETHING="none"/SOMETHING="none"/' configfile.txt

copies the contents of that configuration file to the user's terminal with the possible removal of an octothorp from some lines in the file; but it makes absolutely no changes to the contents of that file.

Consider the following possible alternative for your script (which changes the contents of configfile.txt instead of just displaying a possibly changed version of that file on the users selected output file:

Code:

#!/bin/bash
IAm=${0##*/}	# Save last component of script name for diagnostics

var_dir="/root/Documents/test"
cd "$var_dir" || exit 1	# Exit if we can't get into our target directory

# Prompt for, get, and verify ZIP filename...
printf 'Enter name of file to be unzipped (with or without .zip extension): '
read var_name 
var_base=${var_name%.zip}
if [ ! -r "$var_base".zip ]
then	printf '%s: %s not found or not readable.' "$IAm" "$var_base".zip >&2
	exit 2
fi

# Unzip the named file into the current directory and move the file extracted
# from that archive with the extension ".c" in place of ".zip" for the archive
# to have the extension ".d" instead of ".c".
unzip -o "$var_base".zip || exit 3
mv "$var_base".c "$var_base".d || exit 4

ed -s configfile.txt <<-"EOF" || exit 5
	g/#SOMETHING="none"/s//SOMETHING="none"/
	w
	1,$p
	q
EOF
service something restart

Note that some implementations of sed allow in-place editing of files (like I am doing with ed in the above script), but that option is not portable (and even if it is available on your system, many consider using it dangerous). I am only using features specified by the POSIX standards in this script (other than the absolute pathname for your shell at the start of the script) since you have not specified what operating system you're using. There are some shortcuts that could be used in bash, but I have avoided using them to make your script more portable.

I have told ed to not only update the file, but to also copy the entire contents of the updated file to standard output (to come closer to matching the output your script produced). If you don't need (or want) to see the contents of the updated file, remove the 1,$p line shown in red from the ed commands in the here-document in the script.

By changing directory to $var_dir before the unzip, we get rid of the need for the unzip -d option and speed up the unzip, mv, and ed commands slightly.