Commands using tail | commandlinefu.com

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Terminal - Commands using tail - 224 results

file /System/Library/Extensions/*.kext/Contents/MacOS/* |grep -i x86_64 |nl | tail -1 | cut -f1 -f3; file /System/Library/Extensions/*.kext/Contents/MacOS/* |grep -i "mach-o object i386" |nl | tail -1 | cut -f1 -f3

2009-09-11 16:43:27

User: digitalshadow

Functions: cut file grep nl tail

-2

Up
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How far is Mac OS X 10.6 from 64-bit?

Not as far off as you thought, now is it?

-mac fanboy

find . -name \*.c | xargs wc -l | tail -1 | awk '{print $1}'

2009-09-08 08:25:45

User: karpoke

Functions: awk find tail wc xargs

Tags: awk find wc

Up
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Make a statistic about the lines of code

This is really fast :)

time find . -name \*.c | xargs wc -l | tail -1 | awk '{print $1}'

204753

real 0m0.191s

user 0m0.068s

sys 0m0.116s

ls -lct /etc/ | tail -1 | awk '{print $6, $7, $8}'

2009-09-04 16:52:50

User: peshay

Functions: awk ls tail

Up
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When was your OS installed?

shows also time if its the same year or shows year if installed before actual year and also works if /etc is a link (mac os)

file /System/Library/Extensions/*.kext/Contents/MacOS/* |grep -i x86_64 |nl |tail -1 |cut -f1 -f3 && file /System/Library/Extensions/*.kext/Contents/MacOS/* |grep -v x86_64 |nl |tail -1 |cut -f1 -f3

2009-09-03 14:28:02

User: commandlinefu

Functions: cut file grep nl tail

-1

Up
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How far is Mac OS X 10.6 from 64-bit?

Next time you see a mac fanboy bragging about 64-bitness of 10.6 give him this so he might sh?

ls -lct /etc | tail -1 | awk '{print $6, $7}'

2009-09-03 10:26:37

User: MrMerry

Functions: awk ls tail

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When was your OS installed?

Show time and date when you installed your OS.

sudo find /var/log/ -mtime -7 -type f | xargs du -ch | tail -n1

2009-08-27 14:18:47

User: alvinx

Functions: du find sudo tail xargs

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get diskusage of files modified during the last n days

get diskusage of files (in this case logfiles in /var/log) modified during the last n days:

sudo find /var/log/ -mtime -n -type f | xargs du -ch

n -> last modified n*24 hours ago

Numeric arguments can be specified as

+n for greater than n,

-n for less than n,

n for exactly n.

=> so 7*24 hours (about 7 days) is -7

sudo find /var/log/ -mtime -7 -type f | xargs du -ch | tail -n1

mirror=ftp://somemirror.com/with/alot/versions/but/no/latest/link; latest=$(curl -l $mirror/ 2>/dev/null | grep util | tail -1); wget $mirror/$latest

2009-08-24 15:58:31

User: peshay

Functions: grep tail wget

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get the latest version

to download latest version of "util", maybe insert a sort if they wont be shown in right order.

curl lists all files on mirror, grep your util, tail -1 will gets the one lists on the bottom and get it with wget

find dir/ -type f | xargs tail -fqn0

2009-08-21 18:05:12

User: chickenzilla

Functions: find tail xargs

Up
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follow the content of all files in a directory

The `-q' arg forces tail to not output the name of the current file

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

mysql -u<user> -p<password> -s -e 'DESCRIBE <table>' <database> | tail -n +1 | awk '{ printf($1",")}' | head -c -1

2009-08-17 12:54:44

User: Cowboy

Functions: awk head tail

Up
Down

Get table column names from an MySQL-database in comma-seperated form

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

nslookup commandlinefu.com|sed 's/[^0-9. ]//g'|tail -n 1|awk -F " " '{print $2}'

2009-08-07 17:32:55

User: thundernode

Functions: awk nslookup sed tail

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Get the ip registered to a domain on OpenWRT

I use this in a script on my openwrt router to check if my DynDNS needs to be updated, saves your account from being banned for blank updates.

ps -o rss -C httpd | tail -n +2 | (sed 's/^/x+=/'; echo x) | bc

2009-07-31 15:15:08

User: ricardoarguello

Functions: echo ps sed tail

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How much RAM is Apache using?

Display the amount of memory used by all the httpd processes. Great in case you are being Slashdoted!

Comments (7) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

echo -e "HEAD / HTTP/1.1\nHost: slashdot.org\n\n" | nc slashdot.org 80 | head -n5 | tail -1 | cut -f2 -d-

2009-07-31 06:49:52

User: beerbrain

Functions: cut echo head tail

Tags: sed tail futurama cut nc

-4

Up
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Get Futurama quotations from slashdot.org servers

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ls -t1 | head -n1 | xargs tail -f

2009-07-29 13:46:29

User: patko

Functions: head ls tail xargs

Tags: tail logs

Up
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Tail the most recently modified file

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head -$(($RANDOM % $(wc -l < file.txt) +1 )) file.txt | tail -1

2009-07-23 12:00:49

User: sharfah

Functions: head tail wc

-4

Up
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Pick a random line from a file

prints a random line

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tail -F file

2009-07-23 07:37:11

User: recursiverse

Functions: tail

Tags: tail logs

Up
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Follow tail by name (fix for rolling logs with tail -f)

If you use 'tail -f foo.txt' and it becomes temporarily moved/deleted (ie: log rolls over) then tail will not pick up on the new foo.txt and simply waits with no output.

'tail -F' allows you to follow the file by it's name, rather than a descriptor. If foo.txt disappears, tail will wait until the filename appears again and then continues tailing.

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ls -drt /var/log/* | tail -n5 | xargs sudo tail -n0 -f

2009-07-22 14:44:41

User: kanaka

Functions: ls sudo tail xargs

Tags: bash tail log watch

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Follow the most recently updated log files

This command finds the 5 (-n5) most frequently updated logs in /var/log, and then does a multifile tail follow of those log files.

Alternately, you can do this to follow a specific list of log files:

sudo tail -n0 -f /var/log/{messages,secure,cron,cups/error_log}

cp `ls -x1tr *.jpg | tail -n 1` newest.jpg

2009-06-17 20:32:04

User: Psychodad

Functions: cp tail

Tags: tail ls newest file webcam

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get newest jpg picture in a folder

search the newest *.jpg in the directory an make a copy to newest.jpg. Just change the extension to search other files. This is usefull eg. if your webcam saves all pictures in a folder and you like the put the last one on your homepage. This works even in a directory with 10000 pictures.

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find /var/log -type f -exec file {} \; | grep 'text' | cut -d' ' -f1 | sed -e's/:$//g' | grep -v '[0-9]$' | xargs tail -f

2009-06-03 09:47:08

User: mohan43u

Functions: cut file find grep sed tail xargs

Tags: tail

Up
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Monitor logs in Linux using Tail

Works in Ubuntu, I hope it will work on all Linux machines. For Unixes, tail should be capable of handling more than one file with '-f' option.

This command line simply take log files which are text files, and not ending with a number, and it will continuously monitor those files.

Putting one alias in .profile will be more useful.

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tail -f FILE | perl -pe 's/KEYWORD/\e[1;31;43m$&\e[0m/g'

2009-06-02 21:31:54

User: tuxifier

Functions: perl tail

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coloured tail

tail with coloured output with the help of perl - need more colours? here is a colour table:

http://www.tuxify.de/?p=23

2009-06-02 09:48:59

User: lxtips

Functions: head sed tail

Tags: sed lynx

-2

Up
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print random commandlinefu.com submission

ok I'm sure it's not pretty

F="$HOME/.moz*/fire*/*/session*.js" ; grep -Go 'entries:\[[^]]*' $F | cut -d[ -f2 | while read A ; do echo $A | sed s/url:/\n/g | tail -1 | cut -d\" -f2; done

2009-05-21 21:58:42

User: b2e

Functions: cut echo grep read sed tail

Up
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List last opened tabs in firefox browser

Tuned for short command line - you can set the path to sessionstore.js more reliable instead of use asterixes etc.

Usable when you are not at home and really need to get your actual opened tabs on your home computer (via SSH). I am using it from my work if I forgot to bookmark some new interesting webpage, which I have visited at home. Also other way to list tabs when your firefox has crashed (restoring of tabs doesn't work always).

This script includes also tabs which has been closed short time before.

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tail -f --retry /var/log/syslog /var/log/auth.log | ccze -A

2009-05-13 00:02:50

User: Yury

Functions: tail

Up
Down

Syslog System Reporting in a shell

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ps -eo user,pcpu,pmem | tail -n +2 | awk '{num[$1]++; cpu[$1] += $2; mem[$1] += $3} END{printf("NPROC\tUSER\tCPU\tMEM\n"); for (user in cpu) printf("%d\t%s\t%.2f%\t%.2f%\n",num[user], user, cpu[user], mem[user]) }'

2009-05-05 16:54:25

User: feraudet

Functions: awk ps tail

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cpu and memory usage top 10 under Linux

It's like `prstat -t` under Solaris

function jumpTo { xmms2 jump `xmms2 list | grep -i '$1' | head -n 1 | tail -n 1 | sed -re 's@.+\[(.+)/.+\] (.+)@\1@'`; }

2009-04-10 13:43:57

User: pyrho

Functions: grep head sed tail

Tags: xmms2

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Jump to a song in your XMMS2 playlist, based on song title/artist

Usage:

Declare this function in your Shell, then use it like this:

> jumpTo foo

The script will search for the 'foo' pattern in your current xmms2 playlist (artist or songname), and play the first occurence of it !

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ps aux | sort +2n | tail -20

2009-03-31 12:03:34

User: dopeman

Functions: ps sort tail

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Show the 20 most CPU/Memory hungry processes

This command will show the 20 processes using the most CPU time (hungriest at the bottom).

You can see the 20 most memory intensive processes (hungriest at the bottom) by running:

ps aux | sort +3n | tail -20

Or, run both:

echo "CPU:" && ps aux | sort +2n | tail -20 && echo "Memory:" && ps aux | sort +3n | tail -20

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