CODEWITHSUNDEEP
bashscriptingsed
Tool
Tool

Reputation: 12498

How to avoid having to add '\n' with sed(1)

I want to insert a big chunk of code using a bash script.

This is how I got it to work using sed(1);

$ sed "/);/i\
\ \ \ \ 'doctrine' => array(\n\
        'driver' => array(\n\
            __NAMESPACE__ . '_driver' => array(\n\
                'class' => 'Doctrine\ORM\Mapping\Driver\AnnotationDriver',\n\
                'cache' => 'array',\n\
                'paths' => array(__DIR__ . '\../src/' . __NAMESPACE__ . '/Entity')\n\
            ),\n\
            'orm_default' => array(\n\
                'drivers' => array(\n\
                    __NAMESPACE__ . '\Entity' => __NAMESPACE__ . '_driver'\n\
                )\n\
            )\n\
        )\n\
    ),\n
" config/autoload/local.php;

Note: I had to add \n and \ at the end of each line in order to make it work.

Is there a way to "not" have to do that? To insert plain text? Perhaps a different command?

Edit: my question is how to insert the text without having to add all the backslashes and newlines.

This is the text I need to insert:

'doctrine' => array(
    'driver' => array(
        __NAMESPACE__ . '_driver' => array(
            'class' => 'Doctrine\ORM\Mapping\Driver\AnnotationDriver',
            'cache' => 'array',
            'paths' => array(__DIR__ . '/../src/' . __NAMESPACE__ . '/Entity')
        ),
        'orm_default' => array(
            'drivers' => array(
                __NAMESPACE__ . '\Entity' => __NAMESPACE__ . '_driver'
            )
        )
    )
)

Upvotes: 1

Views: 116

Answers (4)

potong
potong

Reputation: 58578

This might work for you (GNU sed):

cat <<\! >insert_file
    'doctrine' => array(
    'driver' => array(
        __NAMESPACE__ . '_driver' => array(
            'class' => 'Doctrine\ORM\Mapping\Driver\AnnotationDriver',
            'cache' => 'array',
            'paths' => array(__DIR__ . '/../src/' . __NAMESPACE__ . '/Entity')
        ),
        'orm_default' => array(
            'drivers' => array(
                __NAMESPACE__ . '\Entity' => __NAMESPACE__ . '_driver'
            )
        )
    )
)

!
sed '/);/e cat insert_file' file.php

Upvotes: 0

doubleDown
doubleDown

Reputation: 8408

If you insist on using sed, one way (without using backslash at the end of each line) is to save it to a temporary file, e.g. 

cat >tempfile <<'EOF'
  code here...
EOF

then use the r (read) command in sed

sed '/);/ r tempfile' config/autoload/local.php

Upvotes: 0

Steve
Steve

Reputation: 54592

Here's one way:

sed '/);/i\
'doctrine' => array(\
    'driver' => array(\
        __NAMESPACE__ . '_driver' => array(\
            'class' => 'Doctrine\ORM\Mapping\Driver\AnnotationDriver',\
            'cache' => 'array',\
            'paths' => array(__DIR__ . '/../src/' . __NAMESPACE__ . '/Entity')\
        ),\
        'orm_default' => array(\
            'drivers' => array(\
                __NAMESPACE__ . '\Entity' => __NAMESPACE__ . '_driver'\
            )\
        )\
    )\
)' file.php

If you're trying to insert a file, try:

sed '/);/ { 
    h
    r replacement.txt
    g
    N
}' file.php

Upvotes: 2

tamasgal
tamasgal

Reputation: 26329

cat << 'EOF' >> config/autoload/local.php
'doctrine' => array(
    'driver' => array(
        __NAMESPACE__ . '_driver' => array(
            'class' => 'Doctrine\ORM\Mapping\Driver\AnnotationDriver',
            'cache' => 'array',
            'paths' => array(__DIR__ . '/../src/' . __NAMESPACE__ . '/Entity')
        ),
        'orm_default' => array(
            'drivers' => array(
                __NAMESPACE__ . '\Entity' => __NAMESPACE__ . '_driver'
            )
        )
    )
)
EOF

To use the lines with sed, you could print into a variable with read:

read -d '' multiLineString <<"EOF"
'doctrine' => array(
    'driver' => array(
        __NAMESPACE__ . '_driver' => array(
            'class' => 'Doctrine\ORM\Mapping\Driver\AnnotationDriver',
            'cache' => 'array',
            'paths' => array(__DIR__ . '/../src/' . __NAMESPACE__ . '/Entity')
        ),
        'orm_default' => array(
            'drivers' => array(
                __NAMESPACE__ . '\Entity' => __NAMESPACE__ . '_driver'
            )
        )
    )
)
EOF

Then use $multiLineString with sed.

Upvotes: 0

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