Commands tagged free sorted by votes

Commands tagged free (8)

sorted by

Print number of mb of free ram

This will show the amount of physical RAM that is left unused by the system. Show Sample Output
This is sample output - yours may be different.
```
13 MB
```
4

grep '^MemFree:' /proc/meminfo | awk '{ mem=($2)/(1024) ; printf "%0.0f MB\n", mem }'

dbbolton · 2010-06-30 18:33:29 4
Print number of mb of free ram
This is sample output - yours may be different.
3

free -m | awk '/Mem/ {print $4}'

vincentkriek · 2010-06-26 23:18:56 4
Print number of mb of free ram

Here we instead show a more real figure for how much free RAM you have when taking into consideration buffers that can be freed if needed. Unix machines leave data in memory but marked it free to overwrite, so using the first line from the "free" command will mostly give you back a reading showing you are almost out of memory, but in fact you are not, as the system can free up memory as soon as it is needed. I just noticed the free command is not on my OpenBSD box. Show Sample Output
This is sample output - yours may be different.
```
4920
```
3

free -m | awk '/buffer/ {print $4}'

DaveQB · 2010-06-27 23:30:27 8
Quick and dirty hardware summary

Quick and dirty hardware summary where lshw is not available. Requires util-linux, procps, pciutils, usbutils and net-tools, which should be preinstalled on most systems.
This is sample output - yours may be different.
3

alias gethw='(printf "\nCPU\n\n"; lscpu; printf "\nMEMORY\n\n"; free -h; printf "\nDISKS\n\n"; lsblk; printf "\nPCI\n\n"; lspci; printf "\nUSB\n\n"; lsusb; printf "\nNETWORK\n\n"; ifconfig) | less'

lordtoran · 2021-04-03 00:41:12 405

Customer Friendly free

makes more sense to customers XD Show Sample Output

free -ht --si

rackerjack · 2016-01-10 11:56:26 11

Monitor memory without top or htop

It repeats a command, such as free, every five seconds and highlights the differences
This is sample output - yours may be different.
1

watch -n 5 -d '/bin/free -m'

mikhail · 2021-12-22 22:28:59 341
Print free RAM in MB

Does not output the word "shared" so you can easily store this number in a variable. Show Sample Output
This is sample output - yours may be different.
```
1029
```
0

free -m | awk '/cache:/ {print $4}'

felixhummel · 2012-03-13 19:54:26 5
See memory usage precentage
This is sample output - yours may be different.
0

cat /proc/meminfo | awk -v"RS=~" '{print "Total:", $2/1024000, "GiB","|","In Use:",100-$5/$2*100"%"}'

Moshem · 2017-02-20 12:20:01 17

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

git pull all repos

Shows users and 'virtual users' on your a unix-type system

Shows a list of users that currently running processes are executing as. YMMV regarding ps and it's many variants. For example, you might need: $ ps -axgu | cut -f1 -d' ' | sort -u

send incoming audio to a Icecast server (giss.tv)

easy way to setup an "internet radio sation", pre-requisite, create an account at an icecast server, in this example, just created beforehand an account at giss.tv. Change the word password, with the respective real password you created at server. Make sure to have installed rec, oggnec, oggfwd and tee. I have a mixer connected at line in, so I can mix music and microphone. This also will produce a local recorded copy of the session, it will be called "streamdump.ogg"

Get all mac address

I prefer the ip command to ifconfig as ifconfig is supposedly going to be deprecated. Certain IP address aliases can only be seen with the ip command (such as the ones applied by RHCS).

find text in a file

this will find text in the directory you specify and give you line where it appears.

Convert JSON to YAML

Convert JSON to YAML. Note that you'll need to have PyYaml installed.

randomize hostname and mac address, force dhcp renew. (for anonymous networking)

this string of commands will release your dhcp address, change your mac address, generate a new random hostname and then get a new dhcp lease.

Detect illegal access to kernel space, potentially useful for Meltdown detection

Based on capsule8 agent examples, not rigorously tested

Deleting / Ignoring lines from the top of a file

Output lines starting at line 2.

Create passwords and store safely with gpg

Adjust the $ head -c part for password length. I use filenames like "hans@commandlinefu.com.gpg" and a vim which automatically decrypts files with .gpg suffixes.

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 free

Commands tagged free (8) 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 free (8)

sorted by