1/ At the beginning of the script the shebang should be included,
2/ you're using ' instead of ` at line 6
3/ /tmp should be used consistently, not /temp at line 6
Hi !
I have the following situation -
##First variable
variableA=JOB_A
##bunch of other variable
JOB_A_RESTART=cleanupJobA
JOB_B_RESTART=cleanupJobB
JOB_C_RESTART=cleanupJobC
now i need a script which would -
1. take the first variable
2. create a new variable name... (2 Replies)
Hi all,
i am quite fimiliar with shell scripting but i wouldn't regard myself as a semi professional at it.
I am trying to create an array variable to read in 4 lines from a file using head and tail command in a pipeline and store each line into each array. I have done the scripting in unix... (2 Replies)
Hello all...
I'd like to create a variable from an array element from two arrays. In my search for answers I found this code for bash that joins two arrays and then started to work with it. I had got to work once and then foolishly without saving the code, I started to edit it for ksh and... (4 Replies)
I would like to create a variable within my bash script using awk. I'm reading in a line from an external file, then outputting to a new file in a specific format. But, it doesnt quite work as I have expected and could use some help.
(A pertinent excerpt of ) the bash code is:
count=1
... (4 Replies)
Can anyone help how to create a variable in remote server using shell script. i am connecting to remote server through ssh and creating a variable and assigning the value, but nothing is displayed when i run the script
Here is my script
ssh hostname <<EOF
a=10
echo $a
EOF (1 Reply)
i have a file 'detail' which contains
cat detail
111111
222222
333333
444444
but detail may be 4 line file.6 line file or 8 line file like
cat detail
111111
222222
333333
444444
555555
666666
777777
888888
so i want a declare a loop which assign the value of first line in one... (11 Replies)
Goal: I want run a Bash script that runs some conditional if statements on a specific file path that a user defines.
Question: How do I build the prompt so the script asks the user to define the file path and then use that input as a variable?
I'm guessing I will use a read builtin but I'm... (3 Replies)
I am new to shell scripting and I ran into a couple lines of code which I don't completely understand:
PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/entity/bin
data_dir=/usr/local/entity/projectI believe data_dir to be a more conventional link to a directory. However, I am not sure what PATH... (12 Replies)
Discussion started by: Circuits
12 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