I.E.
I've been using it for years with AIX, Solaris, SGI, with variations ksh and Mandriva and others with pdksh. I've just started using CentOS with ksh and it no longer works. I've tried single quotes double, etc... I've also tried using other shells to no avail. zsh does work, but I don't know how compatible the rest of my scripting would be with it.
I know that Mandriva uses pdksh and CentOS is using AT&T korn shell. I know that there are differences between the two, such as returning variables from subroutines, etc...
I use this type of file manipulation a lot. It's very convenient to be able to change a file without having to create an intermediate file like you would with sed.
Any ideas on why something this simple won't work with AT&T's ksh, or what I need to do to get it working? Or, should I just give in and switch to zsh for the scripts that use ex?
i want to fully undertand redirecting/piping. i know most of the basic stuff, like ls|less or cat file|grep hello etc etc. but there are a somethings like find / -name file 2>/dev/null. what's is the 2? i know it redirects the errors (at least Permission denied ones) to /dev/null (the unix... (3 Replies)
I am using pipes (specifically piping out) in Perl to put an array from one file into an array in a different file. I can't figure out how to transfer the array. I kow how to open the pipe : open (FILEHANDLE, "| file") or die~
but how do I transfer the array. I think it has something to do with... (1 Reply)
I've got a file with lots of commands I want to run in it. They're formatted like so:
cp /path/to/file /path/to/new/file
and on and on and on.
Hundreds of them.
Anyways, I'd like to execute them one at a time, then check what time it is, and repeat this process until 7am.
I can... (3 Replies)
Dear forum
I have the following small script:
#!/bin/ksh
echo -e "abba-o" | awk -F '-' '{ print $2 }' | cut -b 1It needs to be ksh.. in bash I don't have this problem.
If I run this on opensuse 10.2 I get this as output: e
If I run this on suse enterprise 10 sp2 then I get this: o
... (1 Reply)
I am trying to have a script run without interaction from the command line. So in my script i have a line like this
echo -e "\n\n\ny\ny\n" | ./script
the goal being the ability to mimic 3 Enter presses and 2 'y/n' responses with 'y' followed by enter.
For some reason tho, it is not... (1 Reply)
Hi all. I am using procmail to deliver an email to a script I am developing. Procmail delivers the email to the script on standard input. I imagine this is the same as piping input from a command into the script. Hence I've been testing my script by running
echo 'test' | sms-autosend-backup.sh
... (2 Replies)
Hi ,
I have following code in my shell script :
"$TS_BIN/tranfrmr" "${TS_SETTINGS}/tranfrmr_p1.stx" "${TS_LOGS}/tranfrmr_p1.err" | (
"$TS_BIN/cusparse" "${TS_SETTINGS}/cusparse_p2.stx" "${TS_LOGS}/cusparse_p2.err" | (
"$TS_BIN/tsqsort" "${TS_SETTINGS}/srtforpm_p3.stx"... (8 Replies)
Hello,
I have a python script (not created by me), let's call it myscript, which I call with several parameters. If I don't provide the --password parameter, the script will ask the user to input the password.
So I run the script like this:
/wherever/myscript --username=whoever... (3 Replies)
Hi
I am tryin to undertand piping
command1|command2
from what i learn output of cammand 2 is an intput for command 1 right?
If so .
What dose next sequence do
cat f1 >> f2 | grep '^'
I think it takes context of f1 and Concatenate's it to f2 and then looks for ....i don't know..... (7 Replies)
I use the snippet below in /etc/profile on RHEL Linux to capture command line logging and it all works well and good.
Now I'd like to pipe the same output from script through the logger command so it all gets logged to syslog.
The only additional code I've added is in bold below (|... (4 Replies)
Discussion started by: woodson2
4 Replies
LEARN ABOUT OPENSOLARIS
escape
escape(1) Mail Avenger 0.8.3 escape(1)NAME
escape - escape shell special characters in a string
SYNOPSIS
escape string
DESCRIPTION
escape prepends a "" character to all shell special characters in string, making it safe to compose a shell command with the result.
EXAMPLES
The following is a contrived example showing how one can unintentionally end up executing the contents of a string:
$ var='; echo gotcha!'
$ eval echo hi $var
hi
gotcha!
$
Using escape, one can avoid executing the contents of $var:
$ eval echo hi `escape "$var"`
hi ; echo gotcha!
$
A less contrived example is passing arguments to Mail Avenger bodytest commands containing possibly unsafe environment variables. For
example, you might write a hypothetical reject_bcc script to reject mail not explicitly addressed to the recipient:
#!/bin/sh
formail -x to -x cc -x resent-to -x resent-cc
| fgrep "$1" > /dev/null
&& exit 0
echo "<$1>.. address does not accept blind carbon copies"
exit 100
To invoke this script, passing it the recipient address as an argument, you would need to put the following in your Mail Avenger rcpt
script:
bodytest reject_bcc `escape "$RECIPIENT"`
SEE ALSO avenger(1),
The Mail Avenger home page: <http://www.mailavenger.org/>.
BUGS
escape is designed for the Bourne shell, which is what Mail Avenger scripts use. escape might or might not work with other shells.
AUTHOR
David Mazieres
Mail Avenger 0.8.3 2012-04-05 escape(1)