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Search for text in all files of a directory

harmlessFilesystemalle
Adjust the values, the command updates live
user@server
grep -rnI --include='*.php' 'base64_decode' /var/www/vhosts/example.com/httpdocs

Searches recursively in all files whose name matches the pattern and prints file path, line number and line of every match. -I skips binary files. Typical for finding a configuration option, an old domain or suspicious code.

Note: The search term is a regular expression. Add -F to match characters like ( or . literally, and -l to list only file names instead of lines.

Also searched as

  • find which file contains text linux
  • grep recursive search string
  • search file contents
  • search php files for function

Related one-liners

All in Filesystem

Find out which cron job runs a command

#grep -rn "wp-cron.php" /etc/crontab /etc/cron.d /etc/cron.hourly /etc/cron.daily /etc/cron.weekly /etc/cron.monthly /var/spool/cron/crontabs 2>/dev/null
harmlessCron

Search for text in all versions of a repository

$git rev-list --all | xargs git grep -F 'DB_PASSWORD'
harmlessGit

Find a file by name

$find /var/www/vhosts -iname '*wp-config*' 2>/dev/null
harmlessFilesystem

Analyze Googlebot requests in the access log

#grep -i "googlebot" /var/www/vhosts/system/example.com/logs/access_ssl_log | awk '{print $7}' | sort | uniq -c | sort -rn | head -20
harmlessLogs

Check whether Apache hit MaxRequestWorkers

#grep -i "MaxRequestWorkers" /var/log/apache2/error.log* | tail -20
harmlessApache

Extract all URLs from a sitemap.xml

$curl -s https://example.com/sitemap.xml | grep -oP '(?<=<loc>)[^<]+' | sort -u
harmlessSEO checks

Read first, then run.

The commands on myline.de act directly on servers, files and databases. A wrong path or placeholder can delete data irreversibly or make a server unreachable.

  • All commands are provided without warranty and are not tested on every system.
  • Understand what a command does before running it, and check every placeholder.
  • Make a backup first and, if possible, try it on a test system.
  • You run commands at your own risk. Liability for damages is excluded to the extent permitted by law.