Commands using seq sorted by votes

Commands using seq (113)

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Generate Random Text based on Length

Ever need to get some text that is a specific number of characters long? Use this function to easily generate it! Doesn't look pretty, but sure does work for testing purposes! Show Sample Output
This is sample output - yours may be different.
```
[bbbco ~]$ genRandomText 122
onzwxfeknlnvycuccvki dybtrqibdpgl aeclwkfpuxkohucy cqlmpbkwgcqesimxupdkqiymucljhitffb czegujyofidnxnvrkolhmudslpklbjnpmun
[bbbco ~]$ genRandomText 122 | wc -m
122

[bbbco ~]$ genRandomText 27
b bpglferrcsrtveiop umn nq
[bbbco ~]$ genRandomText 27 | wc -m
27
```
0

genRandomText() { a=( a b c d e f g h i j k l m n o p q r s t u v w x y z );f=0;for i in $(seq 1 $(($1-1))); do r=$(($RANDOM%26)); if [ "$f" -eq 1 -a $(($r%$i)) -eq 0 ]; then echo -n " ";f=0;continue; else f=1;fi;echo -n ${a[$r]};done;echo"";}

bbbco · 2012-01-20 21:18:16 4
echo text in fancy manner

change the time that you would like to have as print interval and just use it to say whatever you want to Show Sample Output
This is sample output - yours may be different.
```
sayspeed "Who are you?"

Who are you?

----

sayspeed "Loading..."

Loading...
```
0

sayspeed() { for i in $(seq 1 `echo "$1"|wc -c`); do echo -n "`echo $1 |cut -c ${i}`"; sleep 0.1s; done; echo "";}

kundan · 2012-02-11 05:51:42 3
What value should I set my TCP/IP MTU (Max. Transmission Unit) to?

Linux - starting with a packetsize that must be split into two packets, count down by 8 bytes, and try to send the packet using the "Don't Fragment" option. The actual MTU (the size of the actual PING packet) is (in this example) 1460 data bytes + 20 bytes IP header + 8 bytes PING request = 1488 Show Sample Output
This is sample output - yours may be different.
```
PING slashdot.org (216.34.181.45) 1516(1544) bytes of data.
From wombat.local (192.168.55.10) icmp_seq=1 Frag needed and DF set (mtu = 1500)

--- slashdot.org ping statistics ---
0 packets transmitted, 0 received, +1 errors

... eventually,      note Max pkt .....vvvv that can be sent unsplit
PING slashdot.org (216.34.181.45) 1460(1488) bytes of data.
1468 bytes from slashdot.org (216.34.181.45): icmp_req=1 ttl=244 time=95.1 ms

--- slashdot.org ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 95.137/95.137/95.137/0.000 ms
```
0

pktsize=1516;for i in $( seq $pktsize -8 1450 ) ; do ping -M do -s $i -c 1 slashdot.org; done

unixmonkey31510 · 2012-02-21 01:58:07 3
Write over previous line in bash
This is sample output - yours may be different.
0

seq 1 1000000 | while read i; do echo -en "\r$i"; done

evandrix · 2012-03-15 14:13:04 8
shorter loop than for loop

shorter loop than for loop seq -f 'echo %g' $NUM | sh for i in {0..$NUM}; do echo $i done Show Sample Output
This is sample output - yours may be different.
```
$ seq -f 'echo %g' 10 | sh
1
2
3
4
5
6
7
8
9
10
```
0

seq -f 'echo %g' $NUM | sh

nati · 2012-04-03 19:02:08 3
pad file names with zeros so that files sort easily

This command takes a few changes to get to the file format, but once you have that, you're good to go. Set your environment variables and then change the text "front" and "back" to whatever you're files start and end with. You'll end up with some easily sort-able files. Show Sample Output
This is sample output - yours may be different.
```
mv front1back front001back
mv front2back front002back
mv front3back front003back
mv front4back front004back
mv front5back front005back
mv front6back front006back
mv front7back front007back
mv front8back front008back
mv front9back front009back
mv front10back front010back
mv front11back front011back
mv front12back front012back
mv front13back front013back
mv front14back front014back
mv front15back front015back
```
0

zeros=3; from=1; to=15; for foo in $(seq $from $to); do echo mv "front${foo}back" "front$(printf "%0${zeros}d\n" $foo)back"; done

ClashTheBunny · 2012-05-17 10:54:45 4

Look for free ip's in a given /24 subnet.

The command will make it easy to determine free IP ranges in a crowded sub-net. Show Sample Output

SUBNET="192.168.41" ; diff -y <(nmap -sP -n ${SUBNET}.0/24 | grep ${SUBNET}. | awk '{print $5}' | sort -t"." -k4 -n) <(for i in $(seq 1 254); do echo ${SUBNET}.$i; done)

michel_p · 2012-08-28 09:11:18 4

List prime numbers from 2 to 100
This is sample output - yours may be different.
0

seq 2 100 | factor | sed '/ .* / d ; s/:.*//'

misof · 2012-10-25 15:19:35 4
Generate random number with shuf

Above command will generate a random number between 1 to 10. Show Sample Output
This is sample output - yours may be different.
```
3
```
0

seq 10| shuf | head -1

sandeepvreddy · 2012-11-21 03:57:02 5
Show numerical values for each of the 256 colors in bash for bold and normal fonts

Shows the ?rendering? for each of the 256 colours in both the bold and normal variant. Using seq is helpful to get even lines, passing $((COLUMNS*2)) to column sort-of-handles the nonprintable characters.
This is sample output - yours may be different.
0

for code in $(seq -w 0 255); do for attr in 0 1; do printf "%s-%03s %bTest%b\n" "${attr}" "${code}" "\e[${attr};38;05;${code}m" "\e[m"; done; done | column -c $((COLUMNS*2))

claudius · 2013-01-13 18:23:44 4
Numeric zero padding file rename
This is sample output - yours may be different.
0

for i in $(seq -w 0 100) ; do mv prefix$(( 10#$i )).jpg prefix${i}.jpg ; done

madmike · 2013-02-03 23:23:01 4
Rerun a command until there are no changes, but no more than N times.

The example runs 'puppet' in a loop for 10 times, but exits the loop before if it returns 0 (that means "no changes on last run" for puppet).
This is sample output - yours may be different.
0

for times in $(seq 10) ; do puppet agent -t && break ; done

funollet · 2013-04-03 14:24:36 6
countdown from 10 ...
This is sample output - yours may be different.
0

clear; tput cup 8 8; for i in $(seq 1 10); do echo -n "$((11-$i)) ";sleep 1; done; tput cup 10 8; echo -e "DONE\n\n"

rgregor · 2013-10-01 11:21:25 6
Where is left (or right)

Tells you where's left and right. Handy if you can't ever remember them. Show Sample Output
This is sample output - yours may be different.
```
<-left                                                                                                                 right->
```
0

alias left='echo -n "<-left"; for I in $(seq 1 $(($(stty size | cut -d " " -f 2) - 13))); do echo -n " " ; done ; echo -n "right->";'

guillaume · 2014-12-27 20:41:54 9
paste numbers and operator to get an expression

The paste command pastes lines from FILES. The -s option pastes lines from the same file. The -d option reuses the delimiter. This can be fed to bc to compute any large expression without fear of an overflow ;-). seq 1 100 | paste -s -d '*' | bc 93326215443944152681699238856266700490715968264381621468592963895217\ 59999322991560894146397615651828625369792082722375825118521091686400\ 0000000000000000000000 Show Sample Output
This is sample output - yours may be different.
```
1*2*3*4*5*6*7*8*9*10*11*12*13*14*15*16*17*18*19*20*21*22*23*24*25*26*27*28*29*30*31*32*33*34*35*36*37*38*39*40*41*42*43*44*45*46*47*48*49*50*51*52*53*54*55*56*57*58*59*60*61*62*63*64*65*66*67*68*69*70*71*72*73*74*75*76*77*78*79*80*81*82*83*84*85*86*87*88*89*90*91*92*93*94*95*96*97*98*99*100
```
0

seq 1 100 | paste -s -d '*'

unixmonkey88472 · 2015-04-05 10:59:27 10
cd out n directories (To move n level out of current directory)
This is sample output - yours may be different.
0

cdb() { for i in $(seq $1); do cd ..; done }

cadrian · 2016-05-02 07:01:21 9
Color code each job for GNU Parallel

Colorize each job in a new color.
This is sample output - yours may be different.
0

parallel -j10 --tagstring '\033[30;{=$_=++$::color%8+90=}m' sleep .3{}\;seq {} ::: {1..10}

unixmonkey91589 · 2017-07-05 19:36:27 20
Convert hex data to binary with a bash function (requires bash v4+ for the @^^ lowercase hex demangling)

Use this function with bash version 4+ to convert arbitrary hexadecimal sequences to binary. If you don't have bash 4+ then modify the lowercase to uppercase demangling statement s=${@^^} to set s equal to the uppercase hex input or the bc command throws an input parser error. Show Sample Output
This is sample output - yours may be different.
```
$ bash --version
GNU bash, version 4.4.23(1)-release (x86_64-apple-darwin17.5.0)
$ hex2bin 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f
0000000000000000000000000000000000000000000110011101011001101000100111000000100001011010111000010110010110000011000111101001001101001111111101110110001110101110010001101010001010100110110000010111001010110011111100011011011000001010100011001110001001101111
```
0

hex2bin () { s=${@^^}; for i in $(seq 0 1 $((${#s}-1))); do printf "%04s" `printf "ibase=16; obase=2; ${s:$i:1};\n" | bc` ; done; printf "\n"; }

RiskNerd · 2018-10-02 22:02:33 341
Generate a sequence of numbers.

# for description type man seq Show Sample Output
This is sample output - yours may be different.
```
1
2
3
4
5
6
7
8
9
10
11
12
```
0

seq 12

flxndn · 2018-11-14 13:17:52 449
shuffle lines via perl
This is sample output - yours may be different.
0

seq 1 9 | perl -MList::Util=shuffle -e 'print shuffle <>;'

emphazer · 2019-07-03 09:39:08 38
Visual alert with keyboard LEDs
This is sample output - yours may be different.
0

for a in $(seq 16); do xdotool key Num_Lock;sleep .5; xdotool key Caps_Lock;done

knoppix5 · 2019-07-11 23:47:20 46
shell bash iterate number range with for loop
This is sample output - yours may be different.
0

seq 10 20

Thierry · 2019-07-28 21:47:07 64
Run 10 curl commands in parallel via xargs

Useful for download mulitple files Show Sample Output
This is sample output - yours may be different.
```
xx.xxx.xxx.xx
xx.xxx.xxx.xx
xx.xxx.xxx.xx
xx.xxx.xxx.xx
xx.xxx.xxx.xx
xx.xxx.xxx.xx
xx.xxx.xxx.xx
xx.xxx.xxx.xx
xx.xxx.xxx.xx
xx.xxx.xxx.xx
```
0

NUM="10";seq ${NUM}|time xargs -I % -n1 -P${NUM} curl -sL ifconfig.co

wuseman1 · 2022-06-02 02:08:05 326
x bottles of beer on the wall graph

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 Show Sample Output
This is sample output - yours may be different.
```
See http://tr.im/xbottlesofbeer
```
-1

(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

matthewbauer · 2010-03-17 21:04:36 4
split a postscript file

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
This is sample output - yours may be different.
-1

file=orig.ps; for i in $(seq `grep "Pages:" $file | sed 's/%%Pages: //g'`); do psselect $i $file $i\_$file; done

damncool · 2010-09-24 19:44:32 4
‹ First < 2 3 4 5 >

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save date and time for each command in history

Date-time format: YYYY-MM-DD HH:MM:SS

Write comments to your history.

A null operation with the name 'comment', allowing comments to be written to HISTFILE. Prepending '#' to a command will *not* write the command to the history file, although it will be available for the current session, thus '#' is not useful for keeping track of comments past the current session.

create a simple version of ls with extended output

create a short alias for 'ls' with multi-column (-C), file type syntax additions (slashes after directories, @ for symlinks, etc... (-F), long format (-l), including hidden directories (all ./, ../, .svn, etc) (-a), show file-system blocks actually in use (-s), human readable file sizes (-h)

Recursively remove .svn directories from the current location

check open ports without netstat or lsof

Show a Package Version on RPM based distributions

if you want to see all information about a package use: rpm -qi pkgname full list of querytags can be accessed by the command: rpm --querytags you can also customize the query format how ever you like with using more querytags together along with escape sequences in "man printf"! you can also use more than one package name. for example this command shows name and version in to columns: rpm -q --queryformat %-30{NAME}%{VERSION}\\n pkg1 pkg2

converting vertical line to horizontal line

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Decode base64-encoded file in one line of Perl

Another option is openssl.

Use top to monitor only all processes with the same name fragment 'foo'

top accecpts a comma separated list of PIDs.

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Commands using seq (113)

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