Sponsored Content
Full Discussion: Time Diff in shell script
Top Forums Shell Programming and Scripting Time Diff in shell script Post 302448332 by danmero on Wednesday 25th of August 2010 08:43:47 PM
Old 08-25-2010
Quote:
Originally Posted by posner
Code:
 line 13: %s - -time : syntax error: operand expected (error token is "%s - -time ")

Did you check line 13 ?

Anyway :
Code:
#!/bin/sh
start_time=`date +%s`
sleep 2
end_time=`date +%s`
duration=`expr $end_time - $start_time`
echo $duration

or..
Code:
#!/bin/bash
start_time=`date +%s`
sleep 2
end_time=`date +%s`
echo $(($end_time-$start_time))

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Shell script to manipulate a message count for the same IP @ diff session

I have a file as like below, 10:20:30.45 START 10.20.30.40 10:20:31.46 HELLO 10.20.30.40 10:20:32.46 START 10.20.30.41 10:20:33.44 END 10.20.30.40 10:20:35.44 HELLO 10.20.30.41 10:20:36.56 HELLO 10.20.30.41 10:20:37.78 HELLO 10.20.30.41 10:20:38.99 START 10.20.30.40... (1 Reply)
Discussion started by: gobinath
1 Replies

2. Shell Programming and Scripting

Process diff command output in a shell script

diff -yta file1 file2 #!/usr/abc/b/bin/perl5.6 | #!/usr/abc/b/bin/perl5.8 Notable thing about above line is "|" appears at 62nd position. When the same line is assigned in a variable in a ksh script, using ss=$(diff -yta file1 file2) it appears as ... (4 Replies)
Discussion started by: bhaliyajalpesh
4 Replies

3. Shell Programming and Scripting

Shell script using Diff

Hello - I have a small diff script that checks 2 directories. It reports the difference in count such as wc -l, and also names the different files. How should I get "ERROR: diff found . (host)" - when it actually finds a diff? This is how I have written: #!/bin/bash ... (10 Replies)
Discussion started by: DallasT
10 Replies

4. Shell Programming and Scripting

Shell script to convert epoch time to real time

Dear experts, I have an epoch time input file such as : - 1302451209564 1302483698948 1302485231072 1302490805383 1302519244700 1302492787481 1302505299145 1302506557022 1302532112140 1302501033105 1302511536485 1302512669550 I need the epoch time above to be converted into real... (4 Replies)
Discussion started by: aismann
4 Replies

5. UNIX for Dummies Questions & Answers

Diff between calling a shell script with ./ and . ./

Hi ALL I have a shell script named setUP in which i am sourcing one variable like source var_name="CLASSPATH". When i call it as ./setUP, it does not set the var_name variable. But when i call it like . ./setUP then var_name is set up. What is the difference between this two calls? ... (1 Reply)
Discussion started by: SasDutta
1 Replies

6. Shell Programming and Scripting

Diff between calling a shell script with ./ and . ./

Hi ALL I have a shell script named setUP in which i am sourcing one variable like source var_name="CLASSPATH". When i call it as ./setUP, it does not set the var_name variable. But when i call it like . ./setUP then var_name is set up. What is the difference between this two calls? ... (2 Replies)
Discussion started by: SasDutta
2 Replies

7. Shell Programming and Scripting

serach diff filename in diff location using shell scripting

Hi, I am new to shell scripting. please help me to find out the solution. I need a script where we need to read the text file(consists of all file names) and get the file names one by one and append the date suffix for each file name as 'yyyymmdd' . Then search each file if exists... (1 Reply)
Discussion started by: Lucky123
1 Replies

8. Shell Programming and Scripting

Shell script to compare ,diff and remove betwen 2 files

Hi Friends Need your expertise. Command to check the difference and compare 2 files and remove lines . example File1 is master copy and File2 is a slave copy . whenever i change, add or delete a record in File1 it should update the same in slave copy . Can you guide me how can i accomplish... (3 Replies)
Discussion started by: ajayram_arya
3 Replies

9. Shell Programming and Scripting

Howto compare the columns of 2 diff tables of 2 different schemas in UNIX shell script

HI All, I am new to Unix shell scripts.. Could you please post the unix shell script for for the below request., There are two different tables(sample1, sample2) in different schemas(s_schema1, s_schema2). Unix shell script to compare the columns of two different tables of two... (2 Replies)
Discussion started by: Rajkumar Gopal
2 Replies

10. Shell Programming and Scripting

Calculate Time diff in milli milliseconds(Time format : HH:MM:SS,NNN)

Hi All, I have one file which contains time for request and response. I want to calculate time difference in milliseconds for each line. This file can contain 10K lines. Sample file with 4 lines. for first line. Request Time: 15:23:45,255 Response Time: 15:23:45,258 Time diff... (6 Replies)
Discussion started by: Raza Ali
6 Replies
SCRIPT(1)						    BSD General Commands Manual 						 SCRIPT(1)

NAME
script -- make typescript of terminal session SYNOPSIS
script [-adfpqr] [-c command] [file] DESCRIPTION
script makes a typescript of everything printed 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 all dialogue in file. If no file name is given, the typescript is saved in the file typescript. Option: -a Append the output to file or typescript, retaining the prior contents. -c command Run the named command instead of the shell. Useful for capturing the output of a program that behaves differently when associated with a tty. -d When playing back a session with the -p flag, don't sleep between records when playing back a timestamped session. -f Flush output after each write. This is useful for watching the script output in real time. -p Play back a session recorded with the -r flag in real time. -q Be quiet, and don't output started and ended lines. -r Record a session with input, output, and timestamping. The script ends when the forked shell exits (a control-D to exit 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. ENVIRONMENT
The following environment variable is used 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). 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. BSD
October 17, 2009 BSD
All times are GMT -4. The time now is 12:22 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy