Hi,
I have file which has the following content...
GOOD MORNING
**********WARNING**********
when it kicks from the kickstart, sshd daemon should start at last.
(WHEN KICKING ITSELF, NOT AFTER KICKING).
/etc/rc3.d/S55sshd ( run level specification for sshd is 55, now I would want to... (4 Replies)
Hi friends,
Could you please help me to resolve the below issue.
Input file :-
<Node>
<username>abc</username>
<password>ABC</password>
<Node>
<Node>
<username>xyz</username>
<password>XYZ</password>
<Node>
<Node>
<username>mnp</username>
... (3 Replies)
Hi ,
I have a string which is of multiple line,I have to split the string by reading one line in each iteration and keep it in a string.I am keeping all the file names in side as string returned by the ls command ,I am stocked at the point of spliting the string to segragate each file.
... (4 Replies)
hi,
trying to learn more abt sed :(
i want to substitute a variable(a) with other variable(b) appended.
Read.txt contains:
home/test2/abc
home/test/root1
input.txt contains:
make test "home/test1/none"version="1.3"
wt's wrong test "home/test2/abc"version="1.0"
make save... (9 Replies)
How can I write a script that takes a cisco config file and outputs every occurrence of two, or more, pattern matches through the whole config file?
For example, out of a config file, i want to print out every line with interface, description and ip address through the whole file, and disregard... (3 Replies)
Hello,
The task is quite simple. I need to initialise а string variable and assign to it a very long value. For the reason of readability I want to devide this long value into equal parts and place each part at a separate line.
For instance, I have -
... (1 Reply)
Hey everyone, I'm new to sed and I need to create a script for inserting one line of code at the beginning of every method in a Xcode project (over 6,000 methods). Each method Structure is
(+ or -) (Various declarations-- could span multiple lines) ({)
I've tried for days, any guidance would be... (2 Replies)
Hi guys,
I am fairly comfortable with using the sed command if the string to be replaced is all on a single line.
I was wondering is it possible to use sed command in a multiline way ?
Say for example I have the below string on 2 different lines:
{
"key": "brandNameA",
... (3 Replies)
I'm trying to replicate the sed output on p.108 of Sed&Awk,by Doughery & Robbins, 2nd edition.
I'm on a Windows 10 Surface Pro, running Cygwin for 64-bit versions of Windows.
Input text saved in text file called data_p108.txt:
Consult Section 3.1 in the Owner and Operator
Guide for a... (9 Replies)
Discussion started by: prooney
9 Replies
LEARN ABOUT OSX
mktemp
MKTEMP(1) BSD General Commands Manual MKTEMP(1)NAME
mktemp -- make temporary file name (unique)
SYNOPSIS
mktemp [-d] [-q] [-t prefix] [-u] template ...
mktemp [-d] [-q] [-u] -t prefix
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 selecting 1 of 56800235584 (62 ** 6) pos-
sible file names.
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. Care should be taken to ensure that it is appropriate to use an environment variable poten-
tially supplied by the user.
Any number of temporary files may be created in a single invocation, including one based on the internal template resulting from the -t flag.
The mktemp utility 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.
-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 0 on success, and 1 if an error occurs.
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.
tempfoo=`basename $0`
TMPFILE=`mktemp /tmp/${tempfoo}.XXXXXX` || exit 1
echo "program output" >> $TMPFILE
To allow the use of $TMPDIR:
tempfoo=`basename $0`
TMPFILE=`mktemp -t ${tempfoo}` || exit 1
echo "program output" >> $TMPFILE
In this case, we want the script to catch the error itself.
tempfoo=`basename $0`
TMPFILE=`mktemp -q /tmp/${tempfoo}.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
A mktemp utility appeared in OpenBSD 2.1. This implementation was written independently based on the OpenBSD man page, and first appeared in
FreeBSD 2.2.7. This man page is taken from OpenBSD.
BSD December 30, 2005 BSD