I have 2 files. File 1 exports variables globally, File 2 pulls in the information into itself and displays it. I need to know how to then save the information into the bottom of File 2, allowing for more information to be added at a later date.
The scripts i've written are below.
File 1:... (8 Replies)
How would I pass awk output to a perl variable?
For example, I want to save the value in the 4th column into the variable called test. My best guess is something as follow, but I am sure this isn't correct.
$test = system("awk '/NUMBER/{print \$4}' $_"); (8 Replies)
Hello,
I have a shell script containing a command string in the following format:
command1 | command2 | cut -c9-16
The output from this is a record number (using characters 9-16 of the original output string) e.g. ORD-1234
I wish to save this value to a variable for use in later commands... (4 Replies)
hi
I have a script to login from a host "A" to a list of hosts in a file and perform some commands inside it...its somethin like this
for i in `cat file`
do
ssh -t $i " command1 ; command2; ..."
done
I wanna save the outputs in a file in the current host "A" i.e from where I am... (3 Replies)
I am ssh to many servers to get some information... however sometimes the server is unreacheable and i am getting an error. I want to save that output to a file but I am not able to do so...
I want to be able to save output of bash into a file.. so when I run this command on a script
ssh... (5 Replies)
Hi all........
Plss do help me.......in a big trouble... :wall::wall::wall:
I have 3 directories named as :1. /home/shuchi/source
2./home/shuchi/destination
3./home/shuchi/filter
now the problem is /home/shuchi/source has say 2 files with extension .txt as given below :
A.txt
Code:
... (0 Replies)
Hi all........
Plss do help me.......in a big trouble... :wall::wall::wall:
I have 3 directories named as :1. /home/shuchi/source
2./home/shuchi/destination
3./home/shuchi/filter
now the problem is /home/shuchi/source has say 2 files with extension .txt as given below :
A.txt
msisdn ... (5 Replies)
I have been trying this program for a long time. I am trying to read a file named "odon" line by line; read the first line, send it to do a command saved in a file "perm", once the first line has finished going through the content of the file perm, the result is saved with the number of the line.... (17 Replies)
Hi,
i need help with a file creation of an output program. I've got a program that with #find creates an output for each files in a directory.
If i give this command :
-o spec$(date -u +%Y%m%dt%H%M)
it creates just one file, overwriting all the others since it is the creation date .... (2 Replies)
Hi,
I am working on a script where I am adding adding colors to few of the info in the output.
Now , after that is done , I see colour codes in log files which I don't want to see.:mad::mad::mad::mad:
So , I tried using sed command in script as below which gives me o/p (new.log) as blank file... (7 Replies)
Discussion started by: Dream4649
7 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