First off, if you write to temporary files you should always prepare a place for these first and clean this place upon exit. Usually you can use the PID variable to make the places name unique, because the PID is always unique. I do it usually the following way (sketch only):
This way each instance of a script gets its own temp dir, puts everything it uses in there and upon exit (regardless which exit, even when terminated from outisde) it cleans up. The only way to have the temp files not cleaned is to terminate it with a "kill -9".
how to make a line BLINKING in output and also how to increase font size in output
suppose in run a.sh script
inside echo "hello world "
i want that this should blink in the output and also
the font size of hello world should be big ..
could you please help me out in this (3 Replies)
I'm new to PERL, but I want to take the page source and write it to a file or standard output. I used perl.org as a test website. Here is the script:
use strict;
use warnings;
use LWP::Simple;
getprint('http://www.perl.org') or die 'Unable to get page';
exit 0;
... (1 Reply)
Hi guys;
TBH I am an absolute novice, when it comes to scripting; I do have an idea of the basic commands...
Here is my problem;
I have a flatfile 'A' containing a single column with multiple rows. I have to create a script which will use 'A' as input and then output a string in in the... (0 Replies)
Hi All,
I have around 900 Select Sql's which I would like to run in an awk script and print the output of those sql's in an txt file.
Can you anyone pls let me know how do I do it and execute the awk script? Thanks. (4 Replies)
I have a list of DNS servers I need to look up information on. Each of these servers has a master and a slave database. Essentially what I need to do is create two text files for each server. One with the Master view and one with the Slave view. There's 20 servers, in the end I should have 40 text... (4 Replies)
Below script perfectly works, giving below mail output. BUT, I want to make the script mail only if there are any D-Defined/T-Transition/B-Broken State WPARs and also to copy the output generated during monitoring to a temporary log file, which gets cleaned up every week. Need suggestions.
... (4 Replies)
Hi All,
I have result log file which looks like this (below): from the content need to consolidate the result and put it in tabular form
1). Intercomponents Checking
Passed: All Server are passed.
======================================================================
2). OS version Checking... (9 Replies)
I ran the following command.
cat abc.c > abc.c
I got message the following message from command cat:
cat: abc.c : input file is same as the output file
How the command came to know of the destination file name as the command is sending output to standard file. (3 Replies)
OS: Linux
kernel ver: 2.6x
shell: Korn(ksh)
hi.
We are required to read contents for mutliple GZIP(.gz) files and perform some custom sanity checks downstream, example of such a check can a validation for the length of each record. We should accepts records which are 320 chars long and... (1 Reply)
Discussion started by: kumarjt
1 Replies
LEARN ABOUT ULTRIX
mktemp
mktemp(1) General Commands Manual mktemp(1)Name
mktemp - make a name for a temporary file
Syntax
mktemp [ -c ] [ -d directory_name ] [ -p prefix ]
Description
The command makes a name for the pathname of a temporary file and writes that name to standard output. The name will not duplicate that of
an existing file. The command does not create a new file. The file named must actually be created before can generate a new filename.
Subsequent calls to will only generate a new file name if all previously generated file names have been created by the user and still
exist. Error messages are written to standard error.
The directory_name generated by is the concatenation of a directory name, a slash (/), a file prefix, a dot (.), a four digit number and a
unique character.
The directory name is chosen as follows:
(1) If the -d option is specified, directory_name is used.
(2) Otherwise, if the TMPDIR environment variable is set and a string that would yield a unique name can be obtained using the value of
that variable as a directory name, this value is used.
(3) Otherwise, is used.
The prefix is chosen as follows:
(1) If the -p option is specified, prefix is used.
(2) Otherwise, if the LOGNAME environment variable is set, it is used as the prefix.
(3) Otherwise, the user's login name is used.
Options-c Causes to attempt to create a regular file using the generated (or created) name string. If file creation is successful, a zero
length file is created with access permissions derived from the process's file mode creation mask, see No attempt is made to
create a file if the length of the generated (or created) name string exceeds 1023 characters. It is the user's responsibility
to remove files created by use of this option.
-d directory_name
Causes directory_name to be used as the directory portion of the pathname. In this case, directory_name is used instead of
TMPDIR and
-p prefix Causes the string prefix to be used as the file's prefix. It is used instead of LOGNAM and the user's login name. If the pre-
fix is longer the 249 characters, it will be silently truncated to that length before the concatenation of the suffix.
Environmental Variables
LOGNAME When the -p prefix option is not specified, the value of this variable is used as the prefix of the filename, if it exists.
TMPDIR When the -d directory_name option is not specified, the value of this variable is used instead of
Restrictions
If the user does not have write permission in the directory specified, and error message is reported and is used in its place. The entire
path name can not exceed 1023 characters, and the temporary file name can not exceed 255 characters. If the generated file name is too long
it is truncated to fit before the suffix is added.
See Alsomktemp(1)