Sponsored Content
Top Forums Shell Programming and Scripting Help In Calculation of large values in loop Post 302135881 by sandeepb on Thursday 13th of September 2007 06:04:43 AM
Old 09-13-2007
Your suggested solution has worked fine. Thanks a lot
Just 1 more question how can i store the output in variable instead of echo ? for same command

Thanks
Sandeep
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to add two large values

Hi, Gives me wrong value when, $ echo `expr 2221753117 + 299363384` -1773850795 How to overcome this? Appreciate any help on this. -Om (5 Replies)
Discussion started by: Omkumar
5 Replies

2. Shell Programming and Scripting

Avoid "++ requires lvalue" Error in Loop Calculation

Hi All, Please help me to perform sum of values in a loop, I am getting following error: "total=0++432907765772: ++ requires lvalue" where actual statement is as : total=$total+$amt where amt can have +ve or -ve values Thanks Sandeepb (3 Replies)
Discussion started by: sandeepb
3 Replies

3. UNIX for Dummies Questions & Answers

calculation on a large file

Trying to do some simple maths on a large file. Excel works fine but I have 1 million entries: If the difference between a number in column 2 and the one above it is more than 100 the insert a new line 8 4001 4100 8 4101 4200 8 4201 4300 8 15901 16000 8 15910 ... (1 Reply)
Discussion started by: dr_sabz
1 Replies

4. Shell Programming and Scripting

Comparison between 2 large lists with Getting VALUES from one into the other

hi, I have 2 large lists: LIST A: containes 6 fields of many entries (VARIABLE number), like: 2011-07-10 | 18:19:47 | 38037300 | 9647808003122 | 2 | success LIST B: containes 3 fields & 183 entries (FIXED number), like: 9647805651885 9647805651885 SCP_10 What I want is a... (8 Replies)
Discussion started by: amurib
8 Replies

5. Shell Programming and Scripting

How to remove a subset of data from a large dataset based on values on one line

Hello. I was wondering if anyone could help. I have a file containing a large table in the format: marker1 marker2 marker3 marker4 position1 position2 position3 position4 genotype1 genotype2 genotype3 genotype4 with marker being a name, position a numeric... (2 Replies)
Discussion started by: davegen
2 Replies

6. Shell Programming and Scripting

Array Variable being Assigned Values in Loop, But Gone when Loop Completes???

Hello All, Maybe I'm Missing something here but I have NOOO idea what the heck is going on with this....? I have a Variable that contains a PATTERN of what I'm considering "Illegal Characters". So what I'm doing is looping through a string containing some of these "Illegal Characters". Now... (5 Replies)
Discussion started by: mrm5102
5 Replies

7. Shell Programming and Scripting

How to get full width of screen, when using large calculation with bc ?

Experts, When doing large calculation the digits in the screen are limiting to 68 digit and then with a \ ( backspace) next line comes. example: ubuntu# echo "123456789 ^ 50 " | bc 37648602365872212683379005814670372328125515868188009630652959693316\... (4 Replies)
Discussion started by: rveri
4 Replies

8. Shell Programming and Scripting

Reading off values from a large file

Hi, I have a large output file (star.log), with many lines of the following type *** T vavg unburnt: 723.187 / burnt: 2662.000 What I would like to do is pick the values 723.187 and 2662.000 and What I've got so far is awk '/unburnt:.*burnt:/{Tu=$6;Tb=$NF}END{print Tu, Tb}'... (6 Replies)
Discussion started by: lost.identity
6 Replies

9. Shell Programming and Scripting

awk loop using array:wish to store array values from loop for use outside loop

Here's my code: awk -F '' 'NR==FNR { if (/time/ && $5>10) A=$2" "$3":"$4":"($5-01) else if (/time/ && $5<01) A=$2" "$3":"$4-01":"(59-$5) else if (/time/ && $5<=10) A=$2" "$3":"$4":0"($5-01) else if (/close/) { B=0 n1=n2; ... (2 Replies)
Discussion started by: klane
2 Replies

10. Shell Programming and Scripting

Reoccuring peak values in large data file and print the line..

Hi i have some large data files that contain several fields and rows the data in a field have a numeric value that is in a sine wave pattern what i would like todo is locate each peak and pick the highest value and print that complete line. the data looks something like this it is field nr4 which... (4 Replies)
Discussion started by: ninjaunx
4 Replies
SCRIPT(1)							   User Commands							 SCRIPT(1)

NAME
script - make typescript of terminal session SYNOPSIS
script [options] [file] DESCRIPTION
script makes a typescript of everything displayed on your terminal. It is useful for students who need a hardcopy record of an interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1). If the argument file is given, script saves the dialogue in this file. If no filename is given, the dialogue is saved in the file type- script. OPTIONS
-a, --append Append the output to file or to typescript, retaining the prior contents. -c, --command command Run the command rather than an interactive shell. This makes it easy for a script to capture the output of a program that behaves differently when its stdout is not a tty. -e, --return Return the exit code of the child process. Uses the same format as bash termination on signal termination exit code is 128+n. -f, --flush Flush output after each write. This is nice for telecooperation: one person does `mkfifo foo; script -f foo', and another can supervise real-time what is being done using `cat foo'. --force Allow the default output destination, i.e. the typescript file, to be a hard or symbolic link. The command will follow a symbolic link. -q, --quiet Be quiet (do not write start and done messages to standard output). -t[file], --timing[=file] Output timing data to standard error, or to file when given. This data contains two fields, separated by a space. The first field indicates how much time elapsed since the previous output. The second field indicates how many characters were output this time. This information can be used to replay typescripts with realistic typing and output delays. -V, --version Display version information and exit. -h, --help Display help text and exit. NOTES
The script ends when the forked shell exits (a control-D for the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not set) for the C-shell, csh(1)). Certain interactive commands, such as vi(1), create garbage in the typescript file. script works best with commands that do not manipulate the screen, the results are meant to emulate a hardcopy terminal. It is not recommended to run script in non-interactive shells. The inner shell of script is always interactive, and this could lead to unexpected results. If you use script in the shell initialization file, you have to avoid entering an infinite loop. You can use for example the .profile file, which is read by login shells only: if test -t 0 ; then script exit fi You should also avoid use of script in command pipes, as script can read more input than you would expect. ENVIRONMENT
The following environment variable is utilized by script: SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most shells set this variable automatically). SEE ALSO
csh(1) (for the history mechanism), scriptreplay(1) HISTORY
The script command appeared in 3.0BSD. BUGS
script places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects. script is primarily designed for interactive terminal sessions. When stdin is not a terminal (for example: echo foo | script), then the session can hang, because the interactive shell within the script session misses EOF and script has no clue when to close the session. See the NOTES section for more information. AVAILABILITY
The script command is part of the util-linux package and is available from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils /util-linux/>. util-linux June 2014 SCRIPT(1)
All times are GMT -4. The time now is 03:34 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy