Le 27 août à 01:42:13 Anthony Thyssen <[EMAIL PROTECTED]> écrit notamment:
| Jean Magnan de Bornier on wrote... | | Le 23 ao=FBt =E0 09:10:00 Anthony Thyssen <[EMAIL PROTECTED]> =E9crit= | | notamment: | | | | | Jean Magnan de Bornier on wrote... | | | | | | The problem here is that "program" creates a file foo.png, doesn't = | | send | | | | | | to standard input; I guess in this case pipe cannot help..? | | | | | | | | | | | If you are using, BASH you can have program write to /dev/stdout | | | | | (this file does not exist but handled internally by bash) | | | |=20 | | | | Thanks to all! | | | | My "program" is not BASH anf doesn't seem to be able to deliver to stdo= | | ut; | | | | I will habe to stick to some roundabout way... | | > | | | NOT the program, the shell running the pipeline! | | > | | | echo $SHELL | | > | | | will output something like | | > | | | /usr/bash | | > | | Well I use zsh. | | | | Let me be more specific. Some days ago I posted a message about "pdf to png | | and size problem" and I got no solution here; on a french list someone advi= | | sed | | me to use pdftoppm, and I found that this worked as I want: | | | | $ pdftoppm foo.pdf tex; convert tex-000001.ppm foo.png; rm *.ppm=20 | | | | The last command is necessary if I want to use this several times without | | bothering about numbering in the ppm file name, and I thought that if this | | file could be a temporary one (and piped) there would be no need to | | destroy it at the end. However this command works well, but pdftoppm | | doesn't have much flexibility in file names or anything else... | | | Ok.. Now that you are more specific... > | NO you can NOT pipe this as it is creating its own filesnames, | one per page, based on a given 'basename'. You can NOT redirect | this to a pipe. > | HOWEVER. If this is a script (sh, bash or zsh) you can do this.. > | =======8<-------- | #!/bin/sh > | input="$1" | output="$2" > | TMPDIR=/tmp/pdf_pages_$$ | trap 'rm -rf $TMPDIR; exit 1' 1 2 3 15 | trap 'rm -rf $TMPDIR; exit 0' 0 > | mkdir $TMPDIR > | pdftoppm -r 300 -f 1 -l 1 "$input" $TMPDIR/tex > | convert tex-000001.ppm "$output" > | exit 0 | =======8<-------- > > | The 'trap's in the above ensures the files are cleaned up on | any exit (except a unstoppable kill or '9' signal). > | For more info see | IM Examples, API and scripting, Better Scripting | http://www.imagemagick.org/Usage/api/#scripts > | And as an example see IM Scripts | http://www.imagemagick.org/Usage/scripts/ | such as | jigsaw de-pixelate > Thanks a lot for this script! -- Jean _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
