07-13-2006
Help!! how to get the filename as be shown?
I am trying to obtain the file name (not including sub file name), however, I still cannot have the string output.
2 existed files at /tmp, AAA.new and BBB.last
Originally, the output result is needed to be shown as follows,
ex:
SYSTEM NEW LAST
===================
01 AAA BBB
My script was as follows, please kindly review and modify!!
if [ ! ls -t -a $filename/*.new || -a $filename/*.last ]; then
echo "------------NA-------------"
elif [-a $filename\*.new]; then
echo "$SYSTEM\ $filename" | read filename
elif [-a $filename\*.last]; then
echo "$SYSTEM\ $filename" | read filename
fi
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
How do I get my working directory always shown in the unix editor? i.e if I am now at /Home/abc/xyz/, I want to see this absolute path displayed ( and now only display when I type pwd).
thanks for the kind help.
Regrads (3 Replies)
Discussion started by: swchee
3 Replies
2. Solaris
Is there a way to supress the banner from being shown when you log in? (1 Reply)
Discussion started by: BG_JrAdmin
1 Replies
3. Solaris
Hi,
On solaris 10, t5120,
I don't understand what are the last 2 file systems
so last 2 file systems what are they, why are they getting shown and also confused why the swap is shown so many times and different size when I set it to 16 G at the time of installing solaris 10. ( rest... (3 Replies)
Discussion started by: upengan78
3 Replies
4. Solaris
Hello,
This is a 2 node sun cluster 3.2 on solaris 10(x86)
I am using an unique ~512M disk (c0d1) on each node and slice 6 on this disk for globaldevices. While everything looks like fine, the 'Fail' is bothering me.
@ tommy_sun1
@tommy_sun
-bash-3.00# cldevice refresh... (10 Replies)
Discussion started by: upengan78
10 Replies
5. UNIX for Advanced & Expert Users
Hello all,
I am facing a memory related issue on my linux that is CentOS 4.0. What I see as an output of top command, free command is that memory usage is almost 90% which is quite high without much load on the system. This is continuously showing 90% or so of memory usage with top or free... (2 Replies)
Discussion started by: radiatejava
2 Replies
6. IP Networking
I have a TCPIP server application (a Vendor package) which by default allows 10 connections. It provides a parameter to allow us to increase the maximum allowable connections in case it is needed. Intermittently this application is failing with maximum number of connections reached even when there... (1 Reply)
Discussion started by: AIX_user
1 Replies
7. Solaris
Hi
I am using the dd command on solaris 10 and the output doesn't include the MB/s statistic that you get in Linux,
is this not available or am I missing a switch of some sort
#dd if=/dev/urandom of=/perf_test/file.txt bs=1048576 count=500
0+500 records in
0+500 records out (2 Replies)
Discussion started by: eeisken
2 Replies
8. UNIX for Advanced & Expert Users
Heyas
I'm trying to read out a file which contains a variable and use that list to complete a bash command.
Difficult part on this is, that 2 (actualy 3) different lists are to be used, but the 'dynamic' ones from the external file dont work properly.
It only seems to work with the list... (2 Replies)
Discussion started by: sea
2 Replies
9. UNIX for Dummies Questions & Answers
I'm currently running a CUPS server and it shows the printers on other computers just fine, but after a while they disappear. I found out, that restarting /etc/init.d/cups-browsed fixes the problem (for about 15min).
When the printers disappear, the cups-browsed service is still running, so I... (0 Replies)
Discussion started by: Gajeela
0 Replies
10. Ubuntu
Hello,
I have just installed ubuntu 16.04 into my pc.
Locally everything works fine, it takes data from internet, I am also able to connect to apache in the same local network. When I try to reach from mobile network, I can't establish ssh, apache site is not displaying in my browser etc.
... (17 Replies)
Discussion started by: baris35
17 Replies
LEARN ABOUT NETBSD
mktemp
MKTEMP(1) BSD General Commands Manual MKTEMP(1)
NAME
mktemp -- make temporary file name (unique)
SYNOPSIS
mktemp [-dqu] [-p tmpdir] {-t prefix | template ...}
DESCRIPTION
The mktemp utility takes each of the given file name templates and overwrites a portion of it to create a file name. This file name is
unique and suitable for use by the application. The template may be any file name with some number of 'Xs' appended to it, for example
/tmp/temp.XXXX. The trailing 'Xs' are replaced with the current process number and/or a unique letter combination. The number of unique
file names mktemp can return depends on the number of 'Xs' provided; six 'Xs' will result in mktemp testing roughly 26 ** 6 combinations.
If mktemp can successfully generate a unique file name, the file is created with mode 0600 (unless the -u flag is given) and the filename is
printed to standard output.
If the -t prefix option is given, mktemp will generate a template string based on the prefix and the TMPDIR environment variable, if set.
The default location if TMPDIR is not set is /tmp. The default location of the temporary directory can be overridden with the -p tmpdir
option. The template string created will consist of the prefix followed by a '.' and an eight character unique letter combination. 'Xs' in
the prefix string will be treated as literal. If an additional template argument is passed, a second file will be created. Care should be
taken to ensure that it is appropriate to use an environment variable potentially supplied by the user.
Any number of temporary files may be created in a single invocation using multiple template arguments, also a single one based on the inter-
nal template with the -t option value as filename prefix.
At least one template argument or the -t option must be present.
mktemp is provided to allow shell scripts to safely use temporary files. Traditionally, many shell scripts take the name of the program with
the pid as a suffix and use that as a temporary file name. This kind of naming scheme is predictable and the race condition it creates is
easy for an attacker to win. A safer, though still inferior, approach is to make a temporary directory using the same naming scheme. While
this does allow one to guarantee that a temporary file will not be subverted, it still allows a simple denial of service attack. For these
reasons it is suggested that mktemp be used instead.
OPTIONS
The available options are as follows:
-d Make a directory instead of a file.
-q Fail silently if an error occurs. This is useful if a script does not want error output to go to standard error.
-t prefix
Generate a template (using the supplied prefix and TMPDIR if set) to create a filename template. If -t prefix and template are both
given, prefix will not apply to template.
-u Operate in ``unsafe'' mode. The temp file will be unlinked before mktemp exits. This is slightly better than mktemp(3) but still
introduces a race condition. Use of this option is not encouraged.
EXIT STATUS
The mktemp utility exits with a value of 0 on success, and 1 on any failure.
EXAMPLES
The following sh(1) fragment illustrates a simple use of mktemp where the script should quit if it cannot get a safe temporary file.
TMPFILE=`mktemp /tmp/${0##*/}.XXXXXX` || exit 1
echo "program output" >> $TMPFILE
To allow the use of $TMPDIR:
TMPFILE=`mktemp -t ${0##*/}` || exit 1
echo "program output" >> $TMPFILE
In this case, we want the script to catch the error itself.
TMPFILE=`mktemp -q /tmp/${0##*/}.XXXXXX`
if [ $? -ne 0 ]; then
echo "$0: Can't create temp file, exiting..."
exit 1
fi
SEE ALSO
mkdtemp(3), mkstemp(3), mktemp(3), environ(7)
HISTORY
The mktemp utility appeared in NetBSD 1.5. It has been imported from FreeBSD, the idea and the manual page were taken from OpenBSD.
BSD
August 15, 2009 BSD