Hi,
I want to find the exit status of the last executed command in C Shell.
Tried $? but getting the error Variable syntax...$? does not seem to work in C shell..
is there any other command in C shell to find the exit status of last command?
Thanks in advance,
raju (1 Reply)
hi, i give a exit to the system, but it says that i have running jobs... so i do a ps and it displays two lines, one is a -ksh and the other is the ps which i am issuing...
then i give a who -uH, find my pts.. then do a grep... still the same.....
whats wrong.. (6 Replies)
I have a java classpath running inside of a unix shell script. During my testing it will error with lines that show an example like this below.
java.io.FileNotFoundException error
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:129),
... (2 Replies)
Hi All,
How can i exit from "unix"?. Looks silly , but still , i logged in to the unix box , then i did a "su - other user" , then " su - other user" , and i end up in the unix as a some 10th user. If i exist i will come to the previous user/account. I want to exit from unix in a single shot.
... (2 Replies)
We have a requirement where in the user needs to select a option 4 from the menu and the putty window should be closed.I tried giving exit 0 ;; and this is only exiting from the script menu and showing back the prompt.Is there a way for this. (2 Replies)
Hi ,
I have following code in my shell script :
"$TS_BIN/tranfrmr" "${TS_SETTINGS}/tranfrmr_p1.stx" "${TS_LOGS}/tranfrmr_p1.err" | (
"$TS_BIN/cusparse" "${TS_SETTINGS}/cusparse_p2.stx" "${TS_LOGS}/cusparse_p2.err" | (
"$TS_BIN/tsqsort" "${TS_SETTINGS}/srtforpm_p3.stx"... (8 Replies)
Hi,
Can anyone help me how to exit a shell script if a unix command inside does not return any value for 10 seconds?
The scenarios is like this.
I want to login to a application using shell script where the connection string is mentioned.but suppose this connection string is not... (10 Replies)
We have a batch Unix process that runs during the day and it is getting an exit code 11 from Unix. It finishes a sqlplus step and gets the exit code 11 before it starts the next step. This used to happen once a year and now is happening more often (but not every time the process runs). We have... (2 Replies)
Hi,
I am writing a menu driven program using shell script. THe script will be collecting data by logging into the other servers and bringing back the data to home server to process it and accordingly issue commands. TO automate commands execution , I am using expect script. However I am not able... (5 Replies)
Hi All,
I'm creating a program which reads millions of bytes from the PIPE and do some processing. As the data is more, the idea is to read the pipe parallely.
Sun Solaris 8
See the code below:
#!/bin/sh
MAXTHREAD=30
awk '{print $1}' metadata.csv > nvpipe &
while
do
... (3 Replies)
Discussion started by: mr_manii
3 Replies
LEARN ABOUT MOJAVE
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. On case-insensitive file systems, the effective number of unique names is significantly less; given six 'Xs', mktemp will
instead select 1 of 2176782336 (36 ** 6) possible unique 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 _CS_DARWIN_USER_TEMP_DIR configuration
variable if available. Fallback locations if _CS_DARWIN_USER_TEMP_DIR is not available are TMPDIR and /tmp. Care should be taken to ensure
that it is appropriate to use an environment variable potentially supplied by the user.
If no arguments are passed or if only the -d flag is passed mktemp behaves as if -t tmp was supplied.
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 >0 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), confstr(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