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Commands using seq

Commands using seq from sorted by
Terminal - Commands using seq - 83 results
seq 0 0.1 20 | awk '{print $1, cos(0.5*$1)*sin(5*$1)}' | graph -T X
2009-03-24 21:46:59
User: kaan
Functions: awk seq
Tags: awk graph plotutils
2
Up
Down
Quick plotting of a function

The arguments of "seq" indicate the starting value, step size, and the end value of the x-range. "awk" outputs (x, f(x)) pairs and pipes them to "graph", which is part of the "plotutils" package.

Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
seq 6 | awk '{for(x=1; x<=5; x++) {printf ("%f ", rand())}; printf ("\n")}'
2009-03-24 21:33:38
User: kaan
Functions: awk printf seq
Tags: awk seq
3
Up
Down
Display rows and columns of random numbers with awk

Displays six rows and five columns of random numbers between 0 and 1. If you need only one column, you can dispense with the "for" loop.

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seq 50| awk 'BEGIN {a=1; b=1} {print a; c=a+b; a=b; b=c}'
2009-03-24 20:39:24
User: kaan
Functions: awk seq
Tags: awk seq
13
Up
Down
Fibonacci numbers with awk

Another combination of seq and awk. Not very efficient, but sufficiently quick.

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seq 100 | awk '{sum+=$1} END {print sum}'
2009-03-24 20:30:40
User: kaan
Functions: awk seq
Tags: awk seq
3
Up
Down
Calculating series with awk: add numbers from 1 to 100

"seq 100" outputs 1,2,..,100, separated by newlines. awk adds them up and displays the sum.

"seq 1 2 11" outputs 1,3,..,11.

Variations:

1+3+...+(2n-1) = n^2

seq 1 2 19 | awk '{sum+=$1} END {print sum}' # displays 100

1/2 + 1/4 + ... = 1

seq 10 | awk '{sum+=1/(2**$1)} END {print sum}' # displays 0.999023
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for i in $(seq 0 5) ; do echo "5 - $i" | bc -l ; sleep 60 ; done && echo "bye, bye" && shutdown -h now
2009-03-13 12:16:35
User: arctarus
Functions: bc echo seq shutdown sleep
-14
Up
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Five Minutes To Go

command to turn off your computer when you go home and can not wait

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for ip in $(seq 1 25); do ping -c 1 192.168.0.$ip>/dev/null; [ $? -eq 0 ] && echo "192.168.0.$ip UP" || : ; done
2009-02-11 14:57:34
User: kakaroto_win2k
Functions: echo ping seq
-1
Up
Down
how to like to know if a host is ON

this is very useful when there is a different network host to determine which are turned on or not

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for i in $(seq 1 50) ; do echo Iteration $i ; done
2009-02-08 23:03:31
User: abcde
Functions: echo seq
8
Up
Down
seq can produce the same thing as Perl's ... operator.

Optionally, one can use {1..50} instead of seq. E.g. for i in {1..50} ; do echo Iteration $i ; done

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seq -f"ftp://ftp.vim.org/pub/vim/patches/7.1/7.1.%03g" 176 240 | xargs -I {} wget -c {};
2009-02-06 03:19:06
User: liupeng
Functions: seq wget xargs
3
Up
Down
download a sequence of vim patch

Seq allows you to define printf like formating by specified with -f, %03g is actually tells seq I got three digits, fill the blank digits with 0, and the range is from 176 to 240.

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