I'm not sure what you think a PATH variable does. If a file has execute permissions (meaning you can run it by just typing the correct name of the file) then it can be run by typing the whole filename from anywhere
This is awkward if you have your current directory somewhere else. So. PATH allows you to put directories into the variable. Then when you type the name no matter where your current directory is set, the PATH looks up the file, then lets you run it.
Example after adding the directory where shell.sh lives to PATH:
Not delete it
Not write to it.
Just execute it.
The which command helps you figure out what file you will execute before you try to run it. Why? Well, in the example: shell.sh could be in several places. So if you type shell.sh you could be running another script by accident. PATH can be a cause of this.
makes the current directory part of the PATH. Dangerous.
Example: I use t.shl as a throwaway temporary filename. So it could be in any of the my own directories.
tells me which one will run when I type the command.
Last edited by jim mcnamara; 07-26-2018 at 10:37 PM..
Hello everyone,
I'm a unix noob. I have a powerbook running mac os x 10.4 and for one of my classes I need to install the latest version of php (5.0.5). I'm following the instructions at http://developer.apple.com/internet/opensource/php.html to install but I've run into a problem.
The... (2 Replies)
hi ,
i have written csh script i am unable to set PATH variable in my script.
my script is like this
=====================================
# ! /bin/csh -f
setenv PATH "$PATH:/opt/terascan/bin"
ls -l > list
lspass > pas
peekauto > schedule \
num_days = 1 \
exit 0... (1 Reply)
Hi
i am writing a script containing processing commands which are reside in /opt/terascan/bin dir. if i run the script from command prompt it is working fine. but in crontab it is not working.
if i give env command from command prompt it is showing /opt/terascan/bin dir in PATH variable.
... (10 Replies)
How to pass a file path to open a file?
I am using cygwin.
I want to open a file from a particular path, say C:\Test\File1,. This file path is stored in a variable.
I am able to cat a file like this :
cat "c:\Test\File1"
but i want the same thing to happen in my script file through a variable... (3 Replies)
I am trying to install the pkg-get package to a fresh install of Solaris 10. I am able to download and install correctly using the default directory for both pkg-get and wget as found on blastwave.org. When I issue the command "which wget and which pkg-get" it returns no wget or pkg-get found in... (1 Reply)
On one of the machines at work, we had Net-SNMP 5.2.3 installed, and I wanted to upgrade that to 5.4.2.1. So I downloaded the tar file, extracted it, did the configure, make, make test, make install, and everything worked.
All the executable files (like snmpget, snmpset, snmpwalk) got copied to... (1 Reply)
Hi I am using MKS Toolkit c shell.
I want to basically check if my PATH variable already contains a certain path directory so I tried this (it didnt work!): if: Expression Syntax
if ( echo $path |grep -c c:/PROGRA~1/blah/blah ) then
please help me get this little statement to work.
... (3 Replies)
Hi all,
I have a variable test has the following value assigned.. could you please help on doing cd or ls to the value in the varible ...
$echo $test
/bdm/sdd/compounds/AD4833XT/requests/clin/Watson_20090420/docs/MHRA\ Comments\ \&\ Responses
$cd $test
ksh: cd: bad argument count
$cd... (3 Replies)
For the sake of not going insane and not buggering a load of needed system stuff, I have created a dir /mybin. (This is a Debian system.)
I have then edited the /etc/profile and /etc/login.defs files and added :/mybin to all of the path variables. I have the file /mybin/mtp for... (2 Replies)
Discussion started by: MuntyScrunt
2 Replies
LEARN ABOUT ULTRIX
qmail-queue
qmail-queue(8) System Manager's Manual qmail-queue(8)NAME
qmail-queue - queue a mail message for delivery
SYNOPSIS
qmail-queue
DESCRIPTION
qmail-queue reads a mail message from descriptor 0. It then reads envelope information from descriptor 1. It places the message into the
outgoing queue for future delivery by qmail-send.
The envelope information is an envelope sender address followed by a list of envelope recipient addresses. The sender address is preceded
by the letter F and terminated by a 0 byte. Each recipient address is preceded by the letter T and terminated by a 0 byte. The list of
recipient addresses is terminated by an extra 0 byte. If qmail-queue sees end-of-file before the extra 0 byte, it aborts without placing
the message into the queue.
Every envelope recipient address should contain a username, an @ sign, and a fully qualified domain name.
qmail-queue always adds a Received line to the top of the message. Other than this, qmail-queue does not inspect the message and does not
enforce any restrictions on its contents. However, the recipients probably expect to see a proper header, as described in qmail-header(5).
Programs included with qmail which invoke qmail-queue will invoke the contents of $QMAILQUEUE instead, if that environment variable is set.
FILESYSTEM RESTRICTIONS
qmail-queue imposes two constraints on the queue structure: each mess subdirectory must be in the same filesystem as the pid directory; and
each todo subdirectory must be in the same filesystem as the intd directory.
EXIT CODES
qmail-queue does not print diagnostics. It exits 0 if it has successfully queued the message. It exits between 1 and 99 if it has failed
to queue the message.
All qmail-queue error codes between 11 and 40 indicate permanent errors:
11 Address too long.
31 Mail server permanently refuses to send the message to any recipients. (Not used by qmail-queue, but can be used by programs offering
the same interface.)
All other qmail-queue error codes indicate temporary errors:
51 Out of memory.
52 Timeout.
53 Write error; e.g., disk full.
54 Unable to read the message or envelope.
55 Unable to read a configuration file. (Not used by qmail-queue.)
56 Problem making a network connection from this host. (Not used by qmail-queue.)
61 Problem with the qmail home directory.
62 Problem with the queue directory.
63 Problem with queue/pid.
64 Problem with queue/mess.
65 Problem with queue/intd.
66 Problem with queue/todo.
71 Mail server temporarily refuses to send the message to any recipients. (Not used by qmail-queue.)
72 Connection to mail server timed out. (Not used by qmail-queue.)
73 Connection to mail server rejected. (Not used by qmail-queue.)
74 Connection to mail server succeeded, but communication failed. (Not used by qmail-queue.)
81 Internal bug; e.g., segmentation fault.
91 Envelope format error.
SEE ALSO addresses(5), envelopes(5), qmail-header(5), qmail-inject(8), qmail-qmqpc(8), qmail-send(8), qmail-smtpd(8)qmail-queue(8)