Hi,
I have written a script that traps errors on different servers from the log files based on the current system date. The trapped errors are written to a file and file is sent as an attachment to an email.
I would like to run this script for every 2hrs. when i run the script from the second... (0 Replies)
I am trying to write a script that will allow me to train others with commands that I run manually by only allowing the exact command before continuing onto the next set of commands. Here is where I come into an issue. I have changed the directories for this post.
Software we run creates files... (2 Replies)
Guys,
I am new in awk , I face problem while i try to use for loop in awk,
I am using ksh, i am trying to set a for loop which runs as man times as the records in a file , the for loop like for(a=1;a<=5;a++) is working in my awk script but the one i need is not working :wall:
for example
... (8 Replies)
Hello
I am trying to send an email when a .KSH script is run on an AIX Machine.
This email will only include a subject line that is made up of variables from within the script, and is as follows:
CURRENT_DATE=`date +%Y%m%d`
TIME=`date`
ADMIN="myname@domain.com"
date
block ()
{
... (4 Replies)
Hello Everyone,
I'm still trying to grasp many concepts in .ksh scripting, one of them being variables inside loops. My problem is the following:
* I'm trying to set a variable inside a while read loop to reuse it outside of said loop. My lines are the following :... (13 Replies)
Hi,
I have a ksh script running on AIX 5.3 which has sometimes a bizarre behaviour.
The script runs a child script like follow.
trap 'rm -f /tmp/res.log;exit 0' 2 15
run_child.sh > /tmp/res.log 2>&1
echo "run_child.sh is terminated"
next instructions...
rm -f /tmp/res.log
... (12 Replies)
I'm looking at a line in a script:
&& DRROOT="/dir1" || DRROOT="/dir2" I'm trying to understand it.
Is there a "-d" command and is it seeing if /dir1 exists and, if so, set an environment variable named DRROOT to "/dir1", else set DRROOT to "/dir2" ?
Thanks,
-dog
---------- Post... (0 Replies)
Hi, I am new to UNIX. I am working on a script where it takes the input and produces a desired output and it works fine for one instance.
Input(One Instance):
CREATE TABLE TAB1
(
COL1,
COL2
);
CREATE UNIQUE INDEX XPKTAB1
(
COL1
)TAB1;
Output:
CREATE TABLE TAB1
(
COL1,
COL2... (8 Replies)
Discussion started by: varun2327
8 Replies
LEARN ABOUT MOJAVE
link
LN(1) BSD General Commands Manual LN(1)NAME
link, ln -- make links
SYNOPSIS
ln [-Ffhinsv] source_file [target_file]
ln [-Ffhinsv] source_file ... target_dir
link source_file target_file
DESCRIPTION
The ln utility creates a new directory entry (linked file) which has the same modes as the original file. It is useful for maintaining mul-
tiple copies of a file in many places at once without using up storage for the ``copies''; instead, a link ``points'' to the original copy.
There are two types of links; hard links and symbolic links. How a link ``points'' to a file is one of the differences between a hard and
symbolic link.
The options are as follows:
-F If the target file already exists and is a directory, then remove it so that the link may occur. The -F option should be used with
either -f or -i options. If none is specified, -f is implied. The -F option is a no-op unless -s option is specified.
-h If the target_file or target_dir is a symbolic link, do not follow it. This is most useful with the -f option, to replace a symlink
which may point to a directory.
-f If the target file already exists, then unlink it so that the link may occur. (The -f option overrides any previous -i options.)
-i Cause ln to write a prompt to standard error if the target file exists. If the response from the standard input begins with the char-
acter 'y' or 'Y', then unlink the target file so that the link may occur. Otherwise, do not attempt the link. (The -i option over-
rides any previous -f options.)
-n Same as -h, for compatibility with other ln implementations.
-s Create a symbolic link.
-v Cause ln to be verbose, showing files as they are processed.
By default, ln makes hard links. A hard link to a file is indistinguishable from the original directory entry; any changes to a file are
effectively independent of the name used to reference the file. Hard links may not normally refer to directories and may not span file sys-
tems.
A symbolic link contains the name of the file to which it is linked. The referenced file is used when an open(2) operation is performed on
the link. A stat(2) on a symbolic link will return the linked-to file; an lstat(2) must be done to obtain information about the link. The
readlink(2) call may be used to read the contents of a symbolic link. Symbolic links may span file systems and may refer to directories.
Given one or two arguments, ln creates a link to an existing file source_file. If target_file is given, the link has that name; target_file
may also be a directory in which to place the link; otherwise it is placed in the current directory. If only the directory is specified, the
link will be made to the last component of source_file.
Given more than two arguments, ln makes links in target_dir to all the named source files. The links made will have the same name as the
files being linked to.
When the utility is called as link, exactly two arguments must be supplied, neither of which may specify a directory. No options may be sup-
plied in this simple mode of operation, which performs a link(2) operation using the two passed arguments.
COMPATIBILITY
The -h, -i, -n and -v options are non-standard and their use in scripts is not recommended. They are provided solely for compatibility with
other ln implementations.
The -F option is FreeBSD extention and should not be used in portable scripts.
SEE ALSO link(2), lstat(2), readlink(2), stat(2), symlink(2), symlink(7)STANDARDS
The ln utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').
The simplified link command conforms to Version 2 of the Single UNIX Specification (``SUSv2'').
HISTORY
An ln command appeared in Version 1 AT&T UNIX.
BSD February 14, 2006 BSD