Thread: Using the system command with "to" (Version 101.5c)

Hi Shakar,

system command wait for a command of operating system and options.

but you can use a macro,

the manual suggest:
In the next example we modify the previous one to now process all of the files in the directory called "MYDIR" that end in the letters ".Z":

DO FILE WILD DIR MYDIR *.Z
MACRO PREVIEW $FILE
ENDDO
Perhaps it help you,

Cheers,

Milton

On Sep 15, 2015, at 18:20, Shahar Barak <shaharb<at>stanford.edu> wrote:

Hi,

I would like to read multiple SAC files into memory using a file which contains the SAC file names.
According to the SAC book, I can do:
systemcommand to list cat list_file
while read list filename
read filename
enddo
However, I get the error:
"sh: to: command not found"

Why isn't this working?
According to the online command index there's no "to" syntax for systemcommand:
http://ds.iris.edu/files/sac-manual/commands/systemcommand.html

Is there a different way to do this?

Thanks,

Shahar

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Dear Shahar -

Unfortunately, this is one of the differences in the features that IRIS SAC provides and the SAC implementation documented in the book. If you want to take advantage of those features that make interacting with the host system easier, you can download and install that version.

The TO option on SYSTEMCOMMAND takes the output from the host system command and puts it into a blackboard variable that can be manipulated line-by-line with the WHILE READ command, much like the Unix shell’s read command.

On 16 Sep 2015, at 01:20, Shahar Barak <shaharb<at>stanford.edu> wrote:

Hi,

I would like to read multiple SAC files into memory using a file which contains the SAC file names.
According to the SAC book, I can do:
systemcommand to list cat list_file
while read list filename
read filename
enddo
However, I get the error:
"sh: to: command not found"

Why isn't this working?
According to the online command index there's no "to" syntax for systemcommand:
http://ds.iris.edu/files/sac-manual/commands/systemcommand.html

Is there a different way to do this?

Thanks,

Shahar

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George Helffrich
george.helffrich<at>bris.ac.uk