Hello I am trying to append an incrimenting number to the end of each line I have it working with a temp file. But I want to do this without a temp file.
a=1
cat "file" | while read LINE
do
echo "$LINE, $a" >> filewithnumbers
a=`expr $a + 1`
... (4 Replies)
Hi all, new to the threads as well as Unix/Linux. I need to create a script that will delete any temporary files as well as check the files on the system for errors or corruption. This is what I have so far and I'm sure that I'm missing things or have the wrong commands. I'm not sure where to go... (3 Replies)
I'm trying to read mail but I obtained this message:
msgcnt 2446 vxfs: mesg 001: vx_nospace - /dev/vg00/lvol4 file system full (1 block extent)
mail: no space for temp file
I want to empty my mailbox
How could I make this?
Regards
Leonardo Siza (3 Replies)
Hi Experts,
I have a requirement where i need to update the below items in file,
1. END TIME
2. PREV_STATUS
For the first time the PREV_status and end time of all job the job will be sysdate & NULL reply as below,
Session_name,Load Type,Frequency,Seesion End time,Prev_Status... (2 Replies)
Hi -
I am looking for a replacing a string in a in multiple *.sql files in directory with a new string without using a temporary file
Normally I can use sed command as below
for W in ls `FILE*.sql`
do
sed 's/OLD/NEW/g' $W > TEMPFILE.dat
mv TEMPFILE.dat $W
done
But Here in my... (9 Replies)
Hi everyone,
Looking for a suggestion to improve the below script in which I´ve been working.
The thing is I have 3 separated AWK scripts that I need to apply over the inputfile, and for scripts (2) and (3) I have to use a "temp" file as their inputfile (inputfile_temp and inputfile_temp1... (2 Replies)
Hi there,
I just want to know how can I redirect error msgs returned from running a command (e.g. nslookup) and then only print out the correct output using an if statement?.
I've tried the following:
where $a is a list of IPs.
but I got all the error msgs printed out to screen and... (9 Replies)
hello guys
Please help me with the below issue
I have two files one base file another lookupfile
base file
abc-001
bcd-001
cde-001
Lookupfile
abc-001|11|12
abc-001|11|12
abc-001|11|12 (6 Replies)
What would be the best way to store the name of an extracted file from a tar to a text file?
I want to extract one file from a tar and store the name of the extracted file to a temp file.
tar -xvf tar_file.tar file_to_be_extracted (1 Reply)
Hi ! :)
I noticed that I create often of temporary files to keep character strings or other and I wish to avoid that if possible ? e.g :
#!/bin/bash
CONFIG_FILE="conf.cfg"
TEMP_HOSTNAME="temp_file1.txt"
for IP in `egrep -o '({1,3}\.){3}{1,3}' $CONFIG_FILE`
do
ssh "$IP"... (2 Replies)
Discussion started by: Arnaudh78
2 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