AWK - exec in AWK

Author

exec in AWK

Igor Bukanov

2004-03-19, 8:23 pm

Hi!

Does AWK has some analog of shell's exec? I have a shell script that
effectively just wraps an AWK script to setup an environment for a
program and then calls exec on that program. So if AWK would support
exec I would just drop the shell completely.

Any hints?

Thanks in advance, Igor

Michael Heiming

2004-03-19, 8:23 pm

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Igor Bukanov <igor@fastmail.fm> wrote:
> Hi!

> Does AWK has some analog of shell's exec? I have a shell script that
> effectively just wraps an AWK script to setup an environment for a
> program and then calls exec on that program. So if AWK would support
> exec I would just drop the shell completely.

> Any hints?

Depends on your awk version and *nix system:

- From 'man awk' (GNU awk) on my box:

system(cmd-line) Execute the command cmd-line, and return the exit
status.
(This may not be available on non-POSIX sys-tems.)

Checking the man page on your box and testing should show.

- --
Michael Heiming (GPG-Key ID: 0xEDD27B94)

Remove +SIGNS and www. if you expect an answer, sorry for
inconvenience, but I get tons of spam.
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Igor Bukanov

2004-03-19, 8:23 pm

Michael Heiming <michael+USENET@www.heiming.de> wrote in message news:<pndt1c.uj5.ln@news.heiming.de>...
> Depends on your awk version and *nix system:
>
> - From 'man awk' (GNU awk) on my box:
>
> system(cmd-line) Execute the command cmd-line, and return the exit
> status.
> (This may not be available on non-POSIX sys-tems.)
>

But system is not exec: I do not want to have an additional awk
process to wait until system returns, I would like to replace the
current process image with another one exectly as execl etc. system
calls would do.

It seems that for now I have to stick with shell+awk :(.

Regards, Igor

Kenny McCormack

2004-03-19, 8:23 pm

In article <7f487643.0402291617.14868cd7@posting.google.com>,
Igor Bukanov <igor@fastmail.fm> wrote:
....
>But system is not exec: I do not want to have an additional awk
>process to wait until system returns, I would like to replace the
>current process image with another one exectly as execl etc. system
>calls would do.
>
>It seems that for now I have to stick with shell+awk :(.
>
>Regards, Igor

Write a gawk extension library.

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