direct execution of many similar commands

[Klaus Frank]

Hallo to all

frequently I get to run a command on a number of files or parameters that come from a file. Usually I do something like:

ls -1 | awk ?{print "my_script " $0 }' > execfile
or
cat datafile | awk ..... > execfile

This works fine but not all at once. i.e. I have to run the execfile aftrwards.

and because time is money I am looking for an on line execution of this sequence of commands that is generated by the above lines without the need of an additional execfile.

How can I tell the shell (ksh) to run all commands directly as they come out of the awk.
Must be something with "command substitution" such as ` ` or $(... ) ?

any ideas ?
thanks
Klaus

[Volker Borowski · Accepted solution]

?hm, how about the most simple solution ?

> exefile ????

| sh !!!!


echo ls -l \\n ls -l \\n | sh

will execute "ls -l" twice !

Volker

[Joseph C. Denman]

You could try this????


ls -1 | awk ?{print "my_script " $0 }' > execfile
cat execfile | while read line
do
${line}
done


...jcd...

[Patrick Wallek]

How about something like:

cd /dir
for i in `ls -1`
do
/other_dir/my_script $i
done

or

cd /dir
ls -1 > datafile
for i in `cat datafile`
do
/other_dir/myscript $i
done

[James R. Ferguson]

Klaus:

By way of example, how about something like this:

# ls -l|awk 'NR != 1 {system ("grep token " $9)}'

...JRF...

[Alan Riggs]

Have you tried replacein "> execfile" with "|xargs sh"

[Wieslaw Krajewski]

Hi,

And one more possibilty:

ls -1 | while read name
do
my_script $name
done

[Vincenzo Restuccia]

ls -l|awk '{print $9}'|sh

[federico_3]

I'd do like this:

ls -1 | awk '{ system("my_prog" $0)}'

or
ls -1 | awk '{print "my_prog " $0}'| sh

federico