How can I insert the content of the variable $SALT in a specific point (line or string) of a file like wp-contet.php from w开发者_JAVA百科ordpress using Bash script?

SALT=$(curl -L https://api.wordpress.org/secret-key/1.1/salt/)

I'm not an expert at parsing text files in bash but you should delete the lines that define the things you're downloading from the wordpress salt and then insert the variable at the end... something like:

#!/bin/sh

SALT=$(curl -L https://api.wordpress.org/secret-key/1.1/salt/)
STRING='put your unique phrase here'
printf '%s\n' "g/$STRING/d" a "$SALT" . w | ed -s wp-config.php

OK, now it's fixed... it should look for where the salt is supposed to go and it will replace it with the info retrieved from https://api.wordpress.org/secret-key/1.1/salt/

This version defines new keys if none exist, and also replaces existing keys:

#!/bin/bash
find . -name wp-config.php -print | while read line
do 
    curl http://api.wordpress.org/secret-key/1.1/salt/ > wp_keys.txt
    sed -i.bak -e '/put your unique phrase here/d' -e \
    '/AUTH_KEY/d' -e '/SECURE_AUTH_KEY/d' -e '/LOGGED_IN_KEY/d' -e '/NONCE_KEY/d' -e \
    '/AUTH_SALT/d' -e '/SECURE_AUTH_SALT/d' -e '/LOGGED_IN_SALT/d' -e '/NONCE_SALT/d' $line
    cat wp_keys.txt >> $line
    rm wp_keys.txt
done

If you have csplit available, you can split the original wp-config.php file either side of the salt definitions, download new salts, then cat back together. This keeps the PHP define() statements at the same location in wp-config.php instead of than moving them to a different location within the file:

# Download new salts
curl "https://api.wordpress.org/secret-key/1.1/salt/" -o salts

# Split wp-config.php into 3 on the first and last definition statements
csplit wp-config.php '/AUTH_KEY/' '/NONCE_SALT/+1'

# Recombine the first part, the new salts and the last part
cat xx00 salts xx02 > wp-config.php

# Tidy up
rm salts xx00 xx01 xx02

How about using sed?

cat wp-config.php | sed 's/old_string/new_string/g' > wp-config.php

I think I got this one! its a bash script using only commands normally available at the command prompt and it does -everything- (assuming httpd is your web user) except create the databases. here you go.

#!/bin/bash

# wordpress latest auto-install script, by alienation 24 jan 2013. run as root.
# usage: ~/wp-install alien /hsphere/local/home/alien/nettrip.org alien_wpdbname alien_wpdbusername p@sSw0rd
# ( wp-install shell-user folder db-name db-user-name db-user-pw )

# download wordpress to temporary area
cd /tmp
rm -rf tmpwp
mkdir tmpwp
cd tmpwp
wget http://wordpress.org/latest.tar.gz
tar -xvzpf latest.tar.gz

# copy wordpress to where it will live, and go there, removing index placeholder if there is one
mv wordpress/* $2
cd $2
rm index.html

# create config from sample, replacing salt example lines with a real salt from online generator
grep -A 1 -B 50 'since 2.6.0' wp-config-sample.php > wp-config.php
wget -O - https://api.wordpress.org/secret-key/1.1/salt/ >> wp-config.php
grep -A 50 -B 3 'Table prefix' wp-config-sample.php >> wp-config.php

# put the appropriate db info in place of placeholders in our new config file
replace 'database_name_here' $3 -- wp-config.php
replace 'username_here' $4 -- wp-config.php
replace 'password_here' $5 -- wp-config.php

# change file ownership and permissions according to ideal at http://codex.wordpress.org/Hardening_WordPress#File_Permissions
touch .htaccess
chown $1:httpd .htaccess
chown -R $1:httpd *
find . -type d -exec chmod 755 {} \;
find . -type f -exec chmod 644 {} \;
chmod -R 770 wp-content
chmod -R g-w wp-admin wp-includes wp-content/plugins
chmod g+w .htaccess

# thats it!
echo ALL DONE

I built a simple CLI for just that. Try it out. It's called [WP-Salts-Update-CLI][1].