1st step
on 2nd node:
$ echo "DROP SUBSCRIPTION exampledb_node_2" | psql
on 1st node:
$ echo "DROP PUBLICATION exampledb_node_1" | psql
2nd step
on 1st node:
$ echo -e "DROP DATABASE exampledb \n" | psql
$ echo "DROP USER \"user-example\"" | psql
on 2nd node:
$ echo -e "DROP DATABASE exampledb \n" | psql
$ echo "DROP USER \"user-example\"" | psql
Showing posts with label escape sequences. Show all posts
Showing posts with label escape sequences. Show all posts
Tuesday, 27 August 2019
Sunday, 19 May 2019
Examples of "escape sequences" usage on echo command
To use interpretation of backslash escapes, just need to put "-e" parameters afterward echo command.
Info: "-e" means enable escape sequences
Examples of backslash escapes:
New line;
$ echo -e "Hello World\n"
-> Hello World
Form feed;
$ echo -e "Hello World\fWhat a lovely day\fI like this\f"
-> Hello World
What a lovely day
I like this
Carriage return;
$ echo -e "Hello World\rWorld"
-> World World
Horizontal tab;
$ echo -e "Hello World\tWhat a lovely day"
-> Hello World What a lovely day
Vertical tab;
$ echo -e "Hello World\vWhat a lovely day"
-> Hello World
What a lovely day
Null;
$ echo -e "Hello World\0 What a lovely day"
-> Hello World What a lovely day
Clear after all;
$ echo -e "Hello World\c What a lovely day"
-> Hello World
Escape character;
Info: "-e" means enable escape sequences
Examples of backslash escapes:
New line;
$ echo -e "Hello World\n"
-> Hello World
Form feed;
$ echo -e "Hello World\fWhat a lovely day\fI like this\f"
-> Hello World
What a lovely day
I like this
Carriage return;
$ echo -e "Hello World\rWorld"
-> World World
Horizontal tab;
$ echo -e "Hello World\tWhat a lovely day"
-> Hello World What a lovely day
Vertical tab;
$ echo -e "Hello World\vWhat a lovely day"
-> Hello World
What a lovely day
Null;
$ echo -e "Hello World\0 What a lovely day"
-> Hello World What a lovely day
Clear after all;
$ echo -e "Hello World\c What a lovely day"
-> Hello World
Escape character;
$ echo -e "Go to \\home directory"
-> Go to \home directory
$ echo -e "Go to \"home\" directory"
Unicode usage;
$ echo -e "This is turkish lira symbol-> \u20ba"
-> This is turkish lira symbol-> ₺
$ echo -e "Go to \"home\" directory"
-> Go to "home" directory
Unicode usage;
$ echo -e "This is turkish lira symbol-> \u20ba"
-> This is turkish lira symbol-> ₺
Labels:
echo,
escape char,
escape sequences,
linux
Subscribe to:
Posts (Atom)