Find directories with trailing spaces
// description of your code here
#Find directories with trailing spaces in them.
#Find directories with trailing spaces in them.
find . -type d -iregex '.* '
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prevent script execution upload directories php shtml
// description of your code here
<Directory "/Library/MediaWiki/web/images"> # Ignore .htaccess files AllowOverride None # Serve HTML as plaintext, don't execute SHTML AddType text/plain .html .htm .shtml # Don't run arbitrary PHP code. php_admin_flag engine off # If you've other scripting languages, disable them too. </Directory>
md5 compute compare files
// description of your code here
md5sum <filename>
recursive find grep
// description of your code here
printf junk avoids problems with single quotes in results returned by find
This example will show path+file but not matching lines.
make a script of it and place it in .bashrc
printf junk avoids problems with single quotes in results returned by find
find . -name "*.txt" -printf '"%p"\n' | xargs grep some_pattern
This example will show path+file but not matching lines.
find . -name "*.php" -printf '"%p"\n' | xargs grep "http://rst.void.ru" | cut -d: -f1
make a script of it and place it in .bashrc
deepfind () { echo "Searching for $1"; find . -type f -printf '"%p"\n' | xargs grep "$1" | cut -d: -f1;}
postfix mail queue watch monitor outgoing email
// description of your code here
postcat
The postcat command displays the content of a message in a mail queue.
To read a message in a mail queue, you need its queue ID. Run mailq for a list of queue IDs. For example, the queue ID of the following message is F2B9715C0B3:
After obtaining a queue ID, use it as an option to postcat to see the contents of the queue file:
Delete all mail in queue
postcat
The postcat command displays the content of a message in a mail queue.
To read a message in a mail queue, you need its queue ID. Run mailq for a list of queue IDs. For example, the queue ID of the following message is F2B9715C0B3:
After obtaining a queue ID, use it as an option to postcat to see the contents of the queue file:
mailq F2B9715C0B3 2464 Mon Oct 13 15:29:39 markus.herrmann@example.com (connect to mail.example.com[217.6.113.151]: Connection timed out) torsten.hecke@example.net -- 2 Kbytes in 1 Requests. postcat -q F2B9715C0B3
Delete all mail in queue
postsuper -d ALL
ubuntu linux date time set update adjust
// description of your code here
date mmddHHMMYYyy so date 121520152005 Dec 15 8:15 2005
kill linux process
// description of your code here
find process id first via
then kill it with
or kill stubborn processes with
find process id first via
ps -alx | grep <string>
then kill it with
kill <PID>
or kill stubborn processes with
kill -9 <PID>
argument list too long rm delete in directory
// description of your code here
find . -maxdepth 1 -name '*.jpg' -exec rm {} \;
list files recursively
// list files recursively using ls
while searching for files
ls -R
while searching for files
ls -R | grep 'searchterm'
vim backreference on search and replace
// description of your code here
Use \(\) to denote an atom.
Use \1 to specify the first atom.
<this is your search and replacement terms>
Use \(\) to denote an atom.
Use \1 to specify the first atom.
<this is your search and replacement terms>
:%s'\(<stuff_to_find>\)'\1<new_stuff>'gc