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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Commands using seq from sorted by
Terminal - Commands using seq - 89 results
for i in $(seq 300) ; do ethtool -s eth0 autoneg on ; sleep 2 ; done
2010-10-31 18:15:54
User: christian773
Functions: seq sleep

use this comand to see which switch port your network interface is using.

but remind, there is no network traffic for 10 minutes or how long you run the comand.

if you start the comand via ssh, port will come up again after the "for loop" has endet

j=0;while true; do let j=$j+1; for i in $(seq 0 20 100); do echo $i;sleep 1; done | dialog --gauge "Install part $j : `sed $(perl -e "print int rand(99999)")"q;d" /usr/share/dict/words`" 6 40;done
2010-10-08 12:12:00
User: houghi
Functions: echo seq sleep

This will turn it in an infinite loop and also shows random words from a file, so it won't be the same each time and also not just a number.

for i in $(seq 0 5 100); do echo $i; sleep 1; done | zenity --progress --title "Installing Foobar" --text "Pleae wait until process has finished."
2010-10-08 04:08:33
User: zed
Functions: echo seq sleep

Create a progress dialog with custom title and text using zenity.

for i in $(seq 0 5 100); do echo $i; sleep 1; done | dialog --gauge "Install..." 6 40
2010-10-08 04:08:17
User: zed
Functions: echo seq sleep

using seq inside a subshell instead of a bash sequence to create increments.

file=orig.ps; for i in $(seq `grep "Pages:" $file | sed 's/%%Pages: //g'`); do psselect $i $file $i\_$file; done
2010-09-24 19:44:32
User: damncool
Functions: file sed seq

splits a postscript file into multiple postscript files. for each page of the input file one output file will be generated. The files will be numbered for example 1_orig.ps 2_orig.ps ...

The psselect commad is part of the psutils package

marbles () { c=''; for i in $(seq $1); do c+='{b,r}'; done; x=$(eval echo $c); p=''; for i in $(seq $2); do p+='b*r'; done; y=$(grep -wo "${p}b*" <<< $x); wc -l <<< "$y"; grep -vc 'rr' <<< "$y"; }
2010-08-27 23:04:33
User: quintic
Functions: echo eval grep seq wc

Suppose you have 11 marbles, 4 of which are red, the rest being blue. The marbles are indistinguishable, apart from colour. How many different ways are there to arrange the marbles in a line? And how many ways are there to arrange them so that no two red marbles are adjacent?

There are simple mathematical solutions to these questions, but it's also possible to generate and count all possibilities directly on the command line, using little more than brace expansion, grep and wc!

The answer to the question posed above is that there are 330 ways of arranging the marbles in a line, 70 of which have no two red marbles adjacent. See the sample output.

To follow the call to marbles 11 4: after c=''; for i in $(seq $1); do c+='{b,r}'; done;, $c equals {b,r}{b,r}{b,r}{b,r}{b,r}{b,r}{b,r}{b,r}{b,r}{b,r}{b,r}

After x=$(eval echo $c), and brace expansion, $x equals bbbbbbbbbbb bbbbbbbbbbr ... rrrrrrrrrrb rrrrrrrrrrr, which is all 2^11 = 2048 strings of 11 b's and r's.

After p=''; for i in $(seq $2); do p+='b*r'; done;, $p equals b*rb*rb*rb*r

Next, after y=$(grep -wo "${p}b*"

Finally, grep -vc 'rr'

seq 8 | awk '{print "e(" $0 ")" }' | bc -l
2010-08-14 02:52:39
User: polar
Functions: awk bc seq
Tags: awk seq bc

If you want a sequence that can be plotted, do:

seq 8 | awk '{print "e(" $0 ")" }' | bc -l | awk '{print NR " " $0}'

Other bc functions include s (sine), c (cosine), l (log) and j (bessel). See the man page for details.

function countdown { case "$1" in -s) shift;; *) set $(($1 * 60));; esac; local S=" "; for i in $(seq "$1" -1 1); do echo -ne "$S\r $i\r"; sleep 1; done; echo -e "$S\rBOOM!"; }
2010-06-30 12:20:01
User: kniht
Functions: echo seq set sleep
Tags: timer counter

The biggest advantage over atoponce's nifty original is not killing the scrollback. Written assuming bash, but shouldn't be terribly difficult to port to other shells. S should be multiple spaces, but I can't get commandlinefu to save/show them properly, any help?

MIN=1 && for i in $(seq $(($MIN*60)) -1 1); do echo -n "$i, "; sleep 1; done; echo -e "\n\nBOOOM! Time to start."
2010-06-20 15:19:12
User: atoponce
Functions: echo seq sleep
Tags: timer counter

Simple countdown clock that should be quite portable across any Bourne-compatible shell. I used to teach for a living, and I would run this code when it was time for a break. Usually, I would set "MIN" to 15 for a 15-minute break. The computer would be connected to a projector, so this would be projected on screen, front and center, for all to see.

seq -s'#' 0 $(tput cols) | tr -d '[:digit:]'
2010-04-01 09:06:44
User: jgc
Functions: seq tput tr
Tags: seq tr tput

Print a row of characters across the terminal. Uses tput to establish the current terminal width, and generates a line of characters just long enough to cross it. In the example '#' is used.

It's possible to use a repeating sequence by dividing the columns by the number of characters in the sequence like this:

seq -s'~-' 0 $(( $(tput cols) /2 )) | tr -d '[:digit:]'


seq -s'-~?' 0 $(( $(tput cols) /3 )) | tr -d '[:digit:]'

You will lose chararacters at the end if the length isn't cleanly divisible.

seq -s" " -50 -1 | tr -dc -
2010-03-25 06:00:24
Functions: seq tr

Get there by going backwards and forgetting the numbers.

(echo "plot '-' with lines"; for x in $(seq 1 100); do curl -s "http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=$(echo $x bottles of beer on the wall|sed 's/ /%20/g')"|sed 's/.*"estimatedResultCount":"\([^"]*\)".*/\1\n/';done)|gnuplot -persist
2010-03-17 21:04:36
User: matthewbauer
Functions: echo sed seq

Will create a graph of the results for "x bottles of beer on the wall".

Requires Gnuplot.

Inspired by an xkcd comic: http://xkcd.com/715/

For sample output see: http://tr.im/xbottlesofbeer

echo $(echo $(seq $MIN $MAX) | sed 's/ /+/g') | bc -l
a="www.commandlinefu.com";b="/index.php";for n in $(seq 1 7);do echo -en "GET $b HTTP/1.0\r\nHost: "$a"\r\n\r\n" |nc $a 80 2>&1 |grep Set-Cookie;done
2010-01-28 14:19:43
User: vlan7
Functions: echo grep seq
Tags: bash cookies

The loop is to compare cookies. You can remove it...

Maybe you wanna use curl...

curl www.commandlinefu.com/index.php -s0 -I | grep "Set-Cookie"
seq 1 5 | parallel ssh {}.cluster.net uptime
2010-01-28 08:18:50
Functions: seq ssh
Tags: parallel

Parallel is from https://savannah.nongnu.org/projects/parallel/

Other examples would be:

(echo foss.org.my; echo www.debian.org; echo www.freenetproject.org) | parallel traceroute

seq -f %04g 0 9999 | parallel -X rm pict{}.jpg

for file in $(seq -f '%03.f' 1 $TOTAL ); do echo "($file/$TOTAL)"; curl -f -O http://domain.com/Name_$file.ext; done
2010-01-12 15:23:44
User: nordri
Functions: echo file seq

With counter format [001, 002, ..., 999] , nice with pictures or wallpapers collections.

for i in $(seq 5); do xpenguins & done
seg() { for b in $(echo $1); do for x in $(seq 10); do echo $b.$x; done; done }
seg() { echo -e "$1" | while read LINE; do for b in $(seq 10); do echo $LINE.$b; done; done; }
for a in bzip2 lzma gzip;do echo -n>$a;for b in $(seq 0 256);do dd if=/dev/zero of=$b.zero bs=$b count=1;c=$(date +%s%N);$a $b.zero;d=$(date +%s%N);total=$(echo $d-$c|bc);echo $total>>$a;rm $b.zero *.bz2 *.lzma *.gz;done;done
2009-10-20 01:00:51
User: matthewbauer
Functions: bzip2 date dd echo seq

See: http://imgur.com/JgjK2.png for example.

Do some serious benchmarking from the commandline. This will write to a file with the time it took to compress n bytes to the file (increasing by 1).


gnuplot -persist <(echo "plot 'lzma' with lines, 'gzip' with lines, 'bzip2' with lines")

To see it in graph form.

ord () { seq 1 127 | while read i; do echo `chr $i` $i; done | grep "^$1 " | cut -c '3-' }
2009-10-16 21:54:01
User: infinull
Functions: cut echo grep read seq

uses the previous "chr" function and uses it to create the inverse function "ord" by brute force.

It's slow, It's inelegant, but it works.

I thought I needed ord/chr to do a cartesian cipher in shell script a whie ago, but eventualy I realized I could get fancy with tr and do the same thing...

seq -w 100 | sed 's/^/login/'
2009-10-15 13:56:56
User: lawrence
Functions: sed seq

This command generates a sequential login list. Good to be used as a source of new logins.

seq 10 |xargs -n1 echo Printing line
2009-10-15 11:05:35
User: Waldirio
Functions: echo seq xargs
Tags: echo xargs seq

Nice command to create a list, you can create too with for command, but this is so faster.

seq 4|xargs -n1 -i bash -c "echo -n 164.85.216.{} - ; nslookup 164.85.216.{} |grep name"|tr -s ' ' ' '|awk '{print $1" - "$5}'|sed 's/.$//'
s="124890";for i in $(seq 0 1 $((${#s}-1))); do arr[$i]=${s:$i:1}; done