Hide

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again.

Delete that bloated snippets file you've been using and share your personal repository with the world. 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.

If you have a new feature suggestion or find a bug, please get in touch via http://commandlinefu.uservoice.com/

Get involved!

You can sign-in using OpenID credentials, or register a traditional username and password.

OpenID
or
Sign in Register

First-time OpenID users will be automatically assigned a username which can be changed after signing in.

Hide

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:

Hide

News

2011-03-12 - Confoo 2011 presentation
Slides are available from the commandlinefu presentation at Confoo 2011: http://presentations.codeinthehole.com/confoo2011/
2011-01-04 - Moderation now required for new commands
To try and put and end to the spamming, new commands require moderation before they will appear on the site.
2010-12-27 - Apologies for not banning the trolls sooner
Have been away from the interwebs over Christmas. Will be more vigilant henceforth.
2010-09-24 - OAuth and pagination problems fixed
Apologies for the delay in getting Twitter's OAuth supported. Annoying pagination gremlin also fixed.
Hide

Tags

Hide

Functions

Hide

Credits

Site by David Winterbottom (user root).

Commands tagged cpuinfo

Commands tagged cpuinfo from sorted by
Terminal - Commands tagged cpuinfo - 9 results
alias sortfast='sort -S$(($(sed '\''/MemF/!d;s/[^0-9]*//g'\'' /proc/meminfo)/2048)) $([ `nproc` -gt 1 ]&&echo -n --parallel=`nproc`)'
2012-02-28 01:34:58
User: AskApache
Functions: alias sed
Tags: meminfo sort alias grep sorting parallel askapache cpuinfo GNU coreutils nproc
2
Up
Down
Fastest Sort. Sort Faster, Max Speed

sort is way slow by default. This tells sort to use a buffer equal to half of the available free memory. It also will use multiple process for the sort equal to the number of cpus on your machine (if greater than 1). For me, it is magnitudes faster.

If you put this in your bash_profile or startup file, it will be set correctly when bash is started.

sort -S1 --parallel=2 <(echo) &>/dev/null && alias sortfast='sort -S$(($(sed '\''/MemF/!d;s/[^0-9]*//g'\'' /proc/meminfo)/2048)) $([ `nproc` -gt 1 ]&&echo -n --parallel=`nproc`)'

Alternative

echo|sort -S10M --parallel=2 &>/dev/null && alias sortfast="command sort -S$(($(sed '/MemT/!d;s/[^0-9]*//g' /proc/meminfo)/1024-200)) --parallel=$(($(command grep -c ^proc /proc/cpuinfo)*2))"
Show sample output | Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
while sleep 1; do acpi -t | osd_cat -p bottom; done &
2011-01-14 23:22:57
User: linuts
Functions: acpi sleep
Tags: cpu cpuinfo temperature
1
Up
Down
To get the CPU temperature continuously on the desktop

No need for a colon, and one less semicolon too. Also untested.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
while :; do acpi -t | osd_cat -p bottom ; sleep 1; done &
2011-01-14 13:57:45
User: John_W
Functions: acpi sleep
Tags: cpu cpuinfo temperature
3
Up
Down
To get the CPU temperature continuously on the desktop

There is no need for variables. I also added sleep to reduce cpu usage, however I didn't test it.

Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
grep 'model\|MHz' /proc/cpuinfo |tail -n 2
2010-11-14 20:32:27
User: schmiddim
Functions: grep tail
Tags: grep cpuinfo
1
Up
Down
List the CPU model name

Information for only one core.

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
cat /proc/cpuinfo
2010-09-24 09:27:58
User: magicjohnson_
Functions: cat
Tags: bash cpuinfo
-1
Up
Down
CPU architecture details

It works in every linux box

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
lscpu
2010-09-18 08:51:12
User: Vosaxalo
Tags: bash cpuinfo
6
Up
Down
CPU architecture details

This command list all CPU technical infos.

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
if cat /proc/cpuinfo | grep " lm " &> /dev/null; then echo "Got 64bit" ; fi
2010-04-10 15:31:58
User: xeor
Functions: cat echo grep
Tags: cpuinfo
4
Up
Down
Determine whether a CPU has 64 bit capability or not

Check if you have 64bit by looking for "lm" in cpuinfo. lm stands for "long mem". This can also be used without being root.

Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
sed -n 's/^model name[ \t]*: *//p' /proc/cpuinfo
2009-11-05 10:59:31
User: jgc
Functions: sed
Tags: sed cpuinfo
0
Up
Down
List the CPU model name

Alternative command to retrieve the CPU model name and strip off the "model name : " labels.

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
grep "model name" /proc/cpuinfo
2009-11-05 05:23:30
User: getkaizer
Functions: grep
Tags: grep cpuinfo
3
Up
Down
List the CPU model name

Extracts the model name of the CPU and displays it on screen.

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate