I am writing a bash script for installing django with postgresql database automatically. Now , I want to replace database name by command ,since it is using sqlite3 database file path.
I wrote this command:
sudo sed -i 's/os.path.join(BASE_DIR, 'db.sqlite3'),/'$project_name',/g' $projects_name/settings.py
But this is not changed while I am making the django project.
How to change this , please help me.
Use double-quotes around sed for variable expansion & to preserve single quotes.
sed -i "s/os.path.join(BASE_DIR, 'db.sqlite3'),/$project_name,/g" "$project_name/settings.py"
tested working fine on GNU sed version 4.2.1
'db.sqlite3'. But please note that variable expansion is not the issue here.You should escape the quotes in 'db.sqlite3':
sudo sed -i 's/os\.path\.join(BASE_DIR, '\''db\.sqlite3'\''),/'$project_name',/g' $projects_name/settings.py
Your sed pattern is os.path.join(BASE_DIR, db.sqlite3), because quotes in 'db.sqlite3' are not interpreted as literal '. Instead they close and reopen the sed command.
$project_nameand$projects_nameare different variables?$projects_namewill$project_name