Hello.
I'm looking at a file that has a ; at the beginning of certain lines. Could someone please tell me what that means? Is it a comment? Is it an execute?
Thank You (1 Reply)
Hi folks!
I'm new in this forum and in the UNIX-world too!!
I've got a real problem:
I have to read out datas like name and e-mail-adress from a Windows- Server from the active directory and put this information into a file.
This file should be moved (or copied) on a Unix- Server...
But I... (3 Replies)
I have a text file with rows of information (it is basically a ls command information(o/p from ls command))
I need to remove the lines ending with a .cnt extension and keep the lines ending with .zip extension, how to accomplish this.
I also only need the date,size and name of the file from every... (2 Replies)
HI
I'm looking to delete lines ending with .tk from below data file
---------
abc.tk
mgm.tk
dtk
mgmstk
------
I have written below code
----
sed '/.tk *$/d' dat_file.txt > temp.txt
----
But its deleting all the lines ending with tk. I need to delete only the lines ending .tk
my... (5 Replies)
Hi,
I'm trying to use sed within a shell script (bash, running ubuntu). The command works fine from the command line, but when I use it within the script, rather than creating a file with the name I've specified, it creates one that ends with a question mark '?' when you use ls, e.g.... (3 Replies)
Hi
Current SCO Unix 5.05
I see that there are filenames with @ at the end of file name for example
in the /usr/lib there is file lpadmin@
what does the @ represent when it is at the end of the file name
Thanks (4 Replies)
Hi, I have a series of files (upwards of 500) the filename format is as follows
CC10-1234P1999.WGS84.p190
each of this files is in a directory named for the file but excluding the extension.
Now the last three numeric characters, in this case 999, can be anything from 001 to 999, I need to... (3 Replies)
Hi, I have multiple large files which consist of the below format:
I am trying to write an awk or sed script to remove all occurrences of the 00 record except the first and remove all of the 80 records except the last one.
Any help would be greatly appreciated. (10 Replies)
Hi,
I have numerous files which have data in the following format
A|B|123.|Mr.|45.66|33|zz
L|16.|33.45|AC.|45.
I want to remove decimal point only if it is last character in a number.
O/p should be
A|B|123|Mr.|45.66|33|zz
L|16|33.45|AC.|45
I tried this
sed -e 's/.|/|/g'
Problem... (6 Replies)
Discussion started by: wahi80
6 Replies
LEARN ABOUT REDHAT
mktemp
MKTEMP(1) BSD General Commands Manual MKTEMP(1)NAME
mktemp -- make temporary file name (unique)
SYNOPSIS
mktemp [-d] [-q] [-u] template
DESCRIPTION
The mktemp utility takes the given file name template 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 at least 6 of 'Xs' appended to it, for example /tmp/temp.XXXXXX.
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.
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.
-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.
RETURN VALUES
The mktemp utility exits with a value of 0 on success, and 1 on 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
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
Note that one can also check to see that $TMPFILE is zero length instead of checking $?. This would allow the check to be done later one in
the script (since $? would get clobbered by the next shell command).
SEE ALSO mkstemp(3), mktemp(3)HISTORY
The mktemp utility appeared in OpenBSD.
BSD November, 20, 1996 BSD