Commands tagged calculation sorted by votes

Commands tagged calculation (10)

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get time in other timezones

On Ubuntu, if tzwatch is installed, then you can call up in terminal the output for every time zone configured in gWorldClock. Show Sample Output
This is sample output - yours may be different.
```
Fri Aug  7 18:23:49 PDT 2009   Local
Sat Aug  8 11:23:49 EST 2009   Australia/Sydney
Sat Aug  8 02:23:49 WEST 2009   Europe/Lisbon
Sat Aug  8 02:23:49 BST 2009   Europe/London
```
5

tzwatch

terry2wa · 2009-08-08 01:26:08 3
calculate in commandline with bash

Only works for integer arithmetic. Show Sample Output
This is sample output - yours may be different.
```
2
```
2

echo $(( 1+1 ))

stubby · 2010-08-08 23:21:15 4
get time in other timezones

prints out the time for the timezone specified in $offsetutc. So you have less to think about things like: "I'm in utc+4 and my friend in utc-7, can I call him now or will I wake him?" Note: $offsetutc should be an integer between -12 and 12. Show Sample Output
This is sample output - yours may be different.
```
utc:   Fri Aug  7 23:07:24 UTC 2009
utc+2: Sat Aug  8 01:07:24 UTC 2009
```
0

let utime=$offsetutc*3600+$(date --utc +%s)+3600; date --utc --date=@${utime}

flokra · 2009-08-07 23:12:14 3
get time in other timezones

On Ubuntu, if tzwatch is installed, then you can call up in terminal the output for every time zone configured in gWorldClock. Show Sample Output
This is sample output - yours may be different.
```
Fri Aug  7 18:23:49 PDT 2009   Local
Sat Aug  8 11:23:49 EST 2009   Australia/Sydney
Sat Aug  8 02:23:49 WEST 2009   Europe/Lisbon
Sat Aug  8 02:23:49 BST 2009   Europe/London
```
0

tzwatch

terry2wa · 2009-08-08 01:25:50 4
floating point bash calculator w/o precision

terms inclosing '()' must be enclosed by "" (soft quotes) bash variables must be referenced: b $x/$y ugly bracket checking (balanced, fractions...) default precision 2 Show Sample Output
This is sample output - yours may be different.
```
b 6*7 -> 42
b "e(1)" 6 -> 2.718281
a=1; b=1/7; b $a/$b -> 0.14
```
0

b(){ echo "scale=${2:-2}; $1" | bc -l; }

dadi · 2009-12-23 23:44:31 10
floating point shell calculator
This is sample output - yours may be different.
0

calc() { awk 'BEGIN { OFMT="%f"; print '"$*"'; exit}'; }

cfajohnson · 2009-12-25 19:08:16 7
calculate in commandline with bc
This is sample output - yours may be different.
0

echo "1+1" | bc

firstohit · 2010-08-08 20:53:14 4
calculate in commandline with dc

Us dc instead of bc. RPN FTW!!! Show Sample Output
This is sample output - yours may be different.
```
2
```
-1

dc -e "1 1 + p"

stubby · 2010-08-08 23:14:30 4
calculate in commandline with perl
This is sample output - yours may be different.
-1

perl -e 'print 1+1 ."\n";'

stubby · 2010-08-08 23:19:10 4
calculate in commandline with python
This is sample output - yours may be different.
-3

python -c "print 1+1"

wannjanjic · 2010-08-09 01:20:44 18

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Get AWS temporary credentials ready to export based on a MFA virtual appliance

You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

Remove a range of lines from a file

list block devices

Shows all block devices in a tree with descruptions of what they are.

Convert entire audio library in parallel

Uses parallel processing Reiteration of my earlier command https://www.commandlinefu.com/commands/view/15246/convert-entire-music-library Usage lc Old_Directory New_DIrectory Old_Format New_Format lc ~/Music ~/Music_ogg mp3 ogg

Convert video files to XviD

Get all links from commandlinefu front page

You need to install WWW::Mechanize Perl module with # cpan -i WWW::Mezchanize or by searching mechanize | grep perl in your package manager With this command, you can get forms, images, headers too

Figure out what shell you're running

Deleting / Ignoring lines from the top of a file

Equivalent to ifconfig -a in HPUX

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Commands tagged calculation (10)

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