shell redirection
hi I have a shell script and I would like to do something like this $ ./script.sh somefile After that, I can, just say, write content of that file on the screen. I would like to know, how to do that in script, I dont know that tricky redirection things ... thanks a lot ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: shell redirection
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Tue, 2 Feb 2010, Stefan Miklosovic wrote: |hi | |I have a shell script and I would like to do something like this | |$ ./script.sh somefile | You could do kind of the following things: example.sh: #!/bin/sh read new /dev/stdin echo $new After your script was created, you could run it with some redirected text file: ./example.sh file.txt Don't forget about permissions of your script file to enable script execution. Also you might use while/for-expressions if content of the text file is multiple strings rather than just a big one. +---+ ! CANMOS ISP Network! +---+ ! Best regards ! ! Igor V. Ruzanov, network operational staff! ! e-Mail: ig...@canmos.ru ! +---+ -BEGIN PGP SIGNATURE- Version: GnuPG v1.2.6 (GNU/Linux) Comment: For info see http://quantumlab.net/pine_privacy_guard/ iD8DBQFLaD6Pbt6QiUlK9twRAhbCAJ4iXYyu5SZqc2uGQsg2tkzsIub+iACgv5l0 0RrvgPbvlfKc6HYm06MnWRk= =4wLL -END PGP SIGNATURE- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Bourne shell redirection of STDOUT
in message [EMAIL PROTECTED], wrote Jimmy Lantz thusly... I wonder if anyone know a way to redirect the STDOUT directly to a variabel in a shellscript w/o using tempfile. I know I can use a tempfile but I'm looking for a way to avoid using a file. you could use pipe (fifo) and/or, in bash2 ksh93, arrays. a pipe is created by mkfifo(1); fill an array in a while loop. (yeah i know, that doesn't answer your question of not using a file in the bourne shell.) - parv -- To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: Bourne shell redirection of STDOUT
in message [EMAIL PROTECTED], wrote parv thusly... you could use pipe (fifo) and/or, in bash2 ksh93, arrays. a pipe is created by mkfifo(1); fill an array in a while loop. argh, never mind... better suggestions already made. sorry for the noise... -- To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Bourne shell redirection of STDOUT
Hi,
I wonder if anyone know a way to redirect the STDOUT directly to a variabel
in a shellscript w/o using tempfile.
I know I can use a tempfile but I'm looking for a way to avoid using a file.
in other words
Does anyone have an alternative to this? I would like to be able to run
this script read-only :
#!/bin/sh
DIALOG=${DIALOG=/usr/bin/dialog}
dialog --inputbox Hitme 8 40 \
2 /tmp/tempfile
myvar=`cat /tmp/tempfile`
Tia
Jim.
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Re: Bourne shell redirection of STDOUT
On Sat, 28 Sep 2002, Jimmy Lantz wrote:
Hi,
I wonder if anyone know a way to redirect the STDOUT directly to a variabel
in a shellscript w/o using tempfile.
Use backticks ``.
I know I can use a tempfile but I'm looking for a way to avoid using a file.
in other words
Does anyone have an alternative to this? I would like to be able to run
this script read-only :
#!/bin/sh
DIALOG=${DIALOG=/usr/bin/dialog}
dialog --inputbox Hitme 8 40 \
2 /tmp/tempfile
myvar=`cat /tmp/tempfile`
Aha. You're not redirecting stdout, you want stderr, and backticks
will only get stdout (which you don't want, as it is used to present
the dialog). Here are two possible solutions:
1) Swap stdout and stderr:
myvar=`$DIALOG --inputbox Hitme 8 40 91 12 29`
2) Since dialog will require a tty anyway, let it talk directly
to /dev/tty, and redirect stderr to stdout:
myvar=`$DIALOG --inputbox Hitme 8 40 21 /dev/tty`
$.02,
/Mikko
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Re: Bourne shell redirection of STDOUT
Jimmy Lantz [EMAIL PROTECTED] wrote:
Does anyone have an alternative to this? I would like to be able to run
this script read-only :
#!/bin/sh
DIALOG=${DIALOG=/usr/bin/dialog}
dialog --inputbox Hitme 8 40 \
2 /tmp/tempfile
myvar=`cat /tmp/tempfile`
Nice example of abuse of cat. :-)
#!/bin/sh -
DIALOG=${DIALOG=/usr/bin/dialog}
myvar=$($DIALOG --inputbox Hitme 8 40 21 $(tty))
Regards
Oliver
--
Oliver Fromme, secnetix GmbH Co KG, Oettingenstr. 2, 80538 München
Any opinions expressed in this message may be personal to the author
and may not necessarily reflect the opinions of secnetix in any way.
All that we see or seem is just a dream within a dream (E. A. Poe)
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