Re: Command substitution into argument to convert
"Michael F. Stemper" <[email protected]> Mon, 13 Jun 2022 15:29:45 -0500
| Newsgroups | alt.comp.lang.shell.unix.bourne-bash |
|---|---|
| Organization | A noiseless patient Spider |
| Message-ID | <[email protected]> |
On 13/06/2022 14.28, Michael F. Stemper wrote: > I'm trying to time-stamp image files as they're downloaded. The > following works fine: > > $ convert -pointsize 20 -fill black -draw 'text 10,20 "06/13 14:13"' RadarMap.png Stamped.png > > However, hard-coding the time stamp would make it worthless. What > I really want to use is the output of: > > $ date +"%m/%d %H:%M" > > But no matter how I try to incorporate that into the command, I > get errors. One other data point. If I try using back-quotes for the command substitution: $ convert -pointsize 20 -fill black -draw 'text 10,20 `date +"%m/%d %H:%M"`' RadarMap.png Stamped.png no error message is issued, but the text that's placed on the image is: date +"%m/%d %H:%M" -- Michael F. Stemper Indians scattered on dawn's highway bleeding; Ghosts crowd the young child's fragile eggshell mind.