How to do simple date (time) calculation in shell script?

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2. Shell Programming and Scripting

Date / Time difference in shell script

Request ID GMDCOMTM GMDRRSTIME GMDRESTIME <36812986> : : :I want to display the date -time difference in other fields. Above I have given for only 1 record. I want to calculate for all the records. (GMCOMTM - GMDRRSTM) ,(GMDRRSTM-GMDRESTM) and...

3. Shell Programming and Scripting

Date / Time difference in shell script

================================================================================ Request ID GMDCOM TIME GMDRRS TIME COM-RRS ================================================================================ <36812974> Tue Oct 1 13:32:40 2013 Tue Oct 1 20:36:42 2013...

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5. Shell Programming and Scripting

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I"m trying to calculate the duration of of backup within a ksh shell script but I get an error. #!/bin/ksh STTIM=`date '+%T'` EDTIM=`date '+%T'` .... .... echo "DURATION OF BACKUP: $((EDTIM - STTIM))"

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7. Shell Programming and Scripting

Date time calculation

hello guys, I had been to many forums and many topics in this site as well for my question but did not get any solution. My question is how i can get y'day date with time stamp today is 20100729103819 and i am looking for output as 20100728103819. in simple words as we do in oracle sysdate-1...

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Execute a part of shell script only after particular date and time

I have created a simple shell script... say test.sh Contents of test.sh ================ service named restart cp /etc/imp.conf /backup/test/ #-- if date > 15 July 2007 11:23 pm , then only issue the commans below, else exit --- cp /etc/secondimp.conf /backup/test/ rm -f...

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script execution time calculation

I am writting a script in the ksh shell and am trying to find a way to report the total execution time of the script without requiring the user to specify the time function when executing the script. Does anyone have any examples they have used. I have been setting up two date variables (one at...

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script

SCRIPT(1)						    BSD General Commands Manual 						 SCRIPT(1)

NAME

     script -- make typescript of terminal session

SYNOPSIS

     script [-akq] [-t time] [file [command ...]]

DESCRIPTION

     The script utility 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.

     If the argument command is given, script will run the specified command with an optional argument vector instead of an interactive shell.

     The following options are available:

     -a      Append the output to file or typescript, retaining the prior contents.

     -k      Log keys sent to program as well as output.

     -q      Run in quiet mode, omit the start and stop status messages.

     -t time
	     Specify time interval between flushing script output file.  A value of 0 causes script to flush for every character I/O event.  The
	     default interval is 30 seconds.

     The script ends when the forked shell (or command) 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.  The script utility works best with commands that do not
     manipulate the screen.  The results are meant to emulate a hardcopy terminal, not an addressable one.

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).

HISTORY

     The script command appeared in 3.0BSD.

BUGS

     The script utility places everything in the log file, including linefeeds and backspaces.	This is not what the naive user expects.

     It is not possible to specify a command without also naming the script file because of argument parsing compatibility issues.

     When running in -k mode, echo cancelling is far from ideal.  The slave terminal mode is checked for ECHO mode to check when to avoid manual
     echo logging.  This does not work when in a raw mode where the program being run is doing manual echo.

BSD
								 January 22, 2004							       BSD

Shell Programming and Scripting