Cameron Simpson wrote: > On 17Sep2006 18:48, Tim <ignored_mailbox@xxxxxxxxxxxx> wrote: > | On Fri, 2006-09-15 at 14:28 -0400, Amadeus W. M. wrote: > | > for file in *.jpg > | > do > | > outputname=`basename $file .jpg`_out.jpg > | > convert [drawing command] $file $outputname > | > done > | > | Does adding files to the same directory it's reading from change how the > | "for files in" function works? > > Not on the first loop - the *.jpg is evaluated before the loop runs. > Next time of course there are more files. > > | > You can do this directly at the prompt, or you can save it in > | > a bash script. > | > | I've not figured out how to do multi-line commands at the command line. > > Just type them. You will find an incomplete command (eg just the first > line from the "for" loop above) will get you the shell's "secondary > prompt", indicating more is needed. When you've entered the "done" > it will run. You can also put more then one command on the same line by using ; to separate commands. or file in *.jpg ; do outputname=`basename $file .jpg`_out.jpg ; convert [drawing command] $file $outputname ; done It gets wrapped in the e-mail, but you enter it all as one line at the command prompt. Now, if you have one command that is ling, you can break it up by putting a \ at the end of the line. (You usually need a space before it.) Mikkel -- Do not meddle in the affairs of dragons, for thou art crunchy and taste good with Ketchup!
