Commands tagged optimize sorted by votes

Commands tagged optimize (7)

sorted by

Cleanup firefox's database.
This is sample output - yours may be different.
18

find ~/.mozilla/firefox/ -type f -name "*.sqlite" -exec sqlite3 {} VACUUM \;

grokskookum · 2009-09-01 21:45:46 1
Cleanup firefox's database.

Sqlite database keeps collecting cruft as time passes, which can be cleaned by the 'vacuum;' command. This command cleans up the cruft in all sqlite files relating to the user you have logged in as. This command has to be run when firefox is not running, or it will exit displaying the pid of the firefox running.
This is sample output - yours may be different.
11

pgrep -u `id -u` firefox-bin || find ~/.mozilla/firefox -name '*.sqlite'|(while read -e f; do echo 'vacuum;'|sqlite3 "$f" ; done)

kamathln · 2009-08-22 10:36:05 4
Cleanup firefox's database.

For Mac OS X users only
This is sample output - yours may be different.
1

find ~/Library/Application\ Support/Firefox/ -type f -name "*.sqlite" -exec sqlite3 {} VACUUM \;

stanishjohnd · 2009-09-02 23:12:13 0
find and reduce 8x parallel the size of PNG images without loosing quality via optipng
This is sample output - yours may be different.
1

find /var/www/ -type f -name '*.[pP][nN][gG]' -print0 | xargs -L 1 -n 1 -P 8 -0 optipng -preserve -quiet -o7 -f4 -strip all

emphazer · 2018-05-14 16:38:11 0
command line to optimize all table from a mysql database

-o : optimize -p : asks for password -u : user to use for authentication Show Sample Output
This is sample output - yours may be different.
```
mysql.help_keyword                      OK
mysql.help_relation                     OK
mysql.help_topic                        OK
mysql.host                              Table is already up to date
```
0

mysqlcheck -op -u<user> <db>

Weboide · 2010-10-06 00:25:49 0
Discover unoptimized MySQL tables and optimize them.

Finds all tables that need optimising and loops through them, running optimise against them. This works server-wide, on all databases and tables.
This is sample output - yours may be different.
0

for table in $(echo "select concat(TABLE_SCHEMA, '.', TABLE_NAME) from information_schema.TABLES where TABLE_SCHEMA NOT IN ('information_schema','mysql') and Data_free > 0" | mysql --skip-column-names); do echo "optimize table ${table}" | mysql; done;

Xiol · 2011-06-28 21:09:57 1
optimized sed

Use optimized sed to big file/stream to reduce execution time Use sed '/foo/ s/foo/foobar/g' <filename> insted of sed 's/foo/foobar/g' <filename>
This is sample output - yours may be different.
-6

sed '/foo/ s/foo/foobar/g' <filename>

totti · 2013-01-02 08:52:44 1

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Check These Out

Check variable has been set

Copy ssh keys to [email protected] to enable password-less ssh logins.

Same as original just no $ at start

import gpg key from the web

imports a public key from the web. I know this by head.. but useful nevertheless

Simulate typing

Read a keypress without echoing it

This shell snippet reads a single keypress from stdin and stores it in the $KEY variable. You do NOT have to press the enter key! The key is NOT echoed to stdout! This is useful for implementing simple text menus in scripts and similar things.

Recursive chmod all *.sh files within the current directory

This command is useful to recursively make executable all "*.sh" files in a folder. This command is useful to apply chmod recursively in a determined kind of file.

Start screen with name and run command

Runs an instance of screen with name of "name_me" and command of "echo "hi"" To reconnect to screen instance later use: screen -r name_me

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Recursively search and replace old with new string, inside every instance of filename.ext

This is a slightly modified version of http://www.commandlinefu.com/commands/view/4283/recursive-search-and-replace-old-with-new-string-inside-files (which did not work due to incorrect syntax) with the added option to sed inside only files named filename.ext

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)
» commands tagged optimize

Commands tagged optimize (7) the last day the last week the last month all time sorted by date votes

What's this?

Check These Out

Stay in the loop…

Commands tagged optimize (7)

sorted by