need help: how to do arithmatic operations on strings

[Taiyaki]

in my script i use the clock function to get me the current date, but I want to add 1 to the date (say it's the 8th today, and I want tomorrow's date, so I add 1 to 8 to make it 9)

Code: Select all

set cdate1 [clock format [clock seconds] -format "%m %d %y"]
append esttime [lindex $cdate1 0]
append esttime "/"
append esttime [expr [lindex $cdate1 1] + 1]
append esttime "/"
append esttime [lindex $cdate1 2]

the expected output would be 02/09/03
the line that's giving me trouble is

Code: Select all

append esttime [expr [lindex $cdate1 1] + 1]

it keeps saying that it's not an octal number or something. Can someone please help? Thanks

[egghead]

in my script i use the clock function to get me the current date, but I want to add 1 to the date (say it's the 8th today, and I want tomorrow's date, so I add 1 to 8 to make it 9)

Code: Select all

set cdate1 [clock format [clock seconds] -format "%m %d %y"]
append esttime [lindex $cdate1 0]
append esttime "/"
append esttime [expr [lindex $cdate1 1] + 1]
append esttime "/"
append esttime [lindex $cdate1 2]

the expected output would be 02/09/03
the line that's giving me trouble is

Code: Select all

append esttime [expr [lindex $cdate1 1] + 1]

it keeps saying that it's not an octal number or something. Can someone please help? Thanks

Maybe it is better to add 24*60*60 ticks to the [clock seconds] and then do the [clock format]?

[Taiyaki]

Maybe it is better to add 24*60*60 ticks to the [clock seconds] and then do the [clock format]?

sorry but I'm a newbie I think what you're trying to say is add 24 hours to my clock before doing the format? That sounds like a great idea, but can you give me the code to do that

Thanks

[Taiyaki]

n/m I realized what you tried to say when I reviewed the TCL manual pages, lol.

Thanks a lot for your help egghead!!!