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 HPUX
uucleanup
uucleanup(1M)uucleanup(1M)NAME
uucleanup - uucp spool directory clean-up
SYNOPSIS
time] time] time] time] string] time] system] debug_level]
DESCRIPTION
The commands, including are targeted for removal from HP-UX; see the below.
scans the spool directories for old files and takes appropriate action to remove them. Depending on the options selected, performs the
following:
o Informs the requestor of send and/or receive requests for systems that cannot be reached.
o Returns mail that cannot be delivered to the sender.
o Removes all other files.
In addition, warns users of requestors who have been waiting for a given number of days (the default is 1 day). Note that unless time is
specifically set, the default time values for the following options are used.
Options
recognizes the following options:
Any files greater or equal to time days old are removed with appropriate information to the requestor. The default time
is 7 days.
Any files greater or equal to time days old are removed. An attempt is made to deliver mail messages and execute news
when appropriate. The default time is 7 days.
Any files equal to time cause a message to be mailed to the requestor warning about the delay in contacting the remote.
The message includes the JOBID, and in the case of mail, the mail message. The administrator can include a message
line telling who to call to correct the problem (see the option). The default time is 1 day.
Any files greater than or equal to time days old are removed. The files are probably not present (if they were, the
could be executed). But, if files are present, they are taken care of by processing. The default time is 2 days.
This string is included in the warning message generated by the
option. The default string is
Other files whose age is more than
time days are deleted. The default time is 2 days.
Clean-up the spool directory for
system only. The default is to clean-up all spool directories.
The debug level is a single digit between 0 and 9.
The higher the numbers, the more detailed the debugging information returned.
This program is typically started by the script which should be started by (see cron(1M)).
WARNINGS
Use of commands, including is discouraged because they are targeted for removal from HP-UX. Use ftp(1) or rcp(1) instead.
FILES
spool directory
SEE ALSO cron(1M), uucp(1), uux(1), uuclean(1M).
Tim O'Reilly and Grace Todino,
O'Reilly & Associates, Inc. USA.
Grace Todino and Dale Dougherty,
O'Reilly & Associates, Inc. USA.
TO BE OBSOLETED uucleanup(1M)