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Full Discussion: Time Stap Diff using Bash
Top Forums Shell Programming and Scripting Time Stap Diff using Bash Post 302823415 by teefa on Wednesday 19th of June 2013 09:19:58 AM
Old 06-19-2013
Quote:
Originally Posted by rajamadhavan
something like this
Code:
$ diffdate() { echo $(($(date -j -f "%H:%M:%S" "$2" "+%s") - $(date -j -f "%H:%M:%S" "$1" "+%s"))); }
$ diffdate "08:35:20" "08:36:58" | awk '{print int($1/60) ":" $1%60}'
1:38

Since you are not specifying the date, this will give incorrect results if you are trying to subtract timestamps rolling over to next date

this is the output kindly help
Code:
A: syntax error at line 1: `(' unexpected

---------- Post updated at 08:19 AM ---------- Previous update was at 08:19 AM ----------

Quote:
Originally Posted by pravin27
Code:
 
#!/bin/ksh
t1=08:35:20
t2=13:36:58
today=$(date '+%Y-%m-%d')
EndSec=$(date  -d"$today $t2" '+%s')
StartSec=$(date  -d"$today $t1" '+%s')
Diff=$(expr $EndSec - $StartSec )
Sec=$(expr $Diff % 60 );Rem=$(expr $Diff / 60 );
min=$(expr $Rem % 60 ) ; Hrs=$(expr $Rem / 60 )
[ -z "$Hrs" ] && Hrs=0; [ -z "$Sec" ] && Sec=0; [ -z "$min" ] && min=0
 
echo "Diff is $Hrs:$min:$Sec"


this is the output kindly help
Code:
date: illegal option -- d
date: illegal option -- 2
date: illegal option -- 0
date: illegal option -- 1
date: illegal option -- 3
date: illegal option -- -
date: illegal option -- 0
date: illegal option -- 6
date: illegal option -- -
date: illegal option -- 1
date: illegal option -- 9
date: illegal option --  
date: illegal option -- 1
date: illegal option -- 3
date: illegal option -- :
date: illegal option -- 3
date: illegal option -- 6
date: illegal option -- :
date: illegal option -- 5
date: illegal option -- 8
usage:  date [-u] mmddHHMM[[cc]yy][.SS]
        date [-u] [+format]
        date -a [-]sss[.fff]
date: illegal option -- d
date: illegal option -- 2
date: illegal option -- 0
date: illegal option -- 1
date: illegal option -- 3
date: illegal option -- -
date: illegal option -- 0
date: illegal option -- 6
date: illegal option -- -
date: illegal option -- 1
date: illegal option -- 9
date: illegal option --  
date: illegal option -- 0
date: illegal option -- 8
date: illegal option -- :
date: illegal option -- 3
date: illegal option -- 5
date: illegal option -- :
date: illegal option -- 2
date: illegal option -- 0
usage:  date [-u] mmddHHMM[[cc]yy][.SS]
        date [-u] [+format]
        date -a [-]sss[.fff]
expr: syntax error
expr: syntax error
expr: syntax error
expr: syntax error
expr: syntax error

 

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