10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi
echo " username "
read username
echo "password"
stty -echo
read password
stty echo
through read i am taking standard input and redirecign them to a file
echo " username=${username}/${password} " > file.lst
now from the same shell script i want to delete the password (i.e... (4 Replies)
Discussion started by: rosheks
4 Replies
2. UNIX for Dummies Questions & Answers
Hi All,
Please could anyone advise what the purpose of the dot syntax in the following command means:
tar -cvf ${WORKING_BACKUP_ROOT}/${TAR_ARCHIVE_FILE} . >/${BACKUP_ROOT}/${ARCHIVE_LOG}
Many thanks (2 Replies)
Discussion started by: daveu7
2 Replies
3. UNIX and Linux Applications
Hi,
Pls check that '|' and '+' present in Step-1 are not copied to log file in Step-3.
Pls suggest how to get the exact output from Step-1 (i.e. with out losing '|' and '+') in to a log file
~Thanks
Step-1: Execute command
> mysql -utest -ptest -htesthost testdb -e "select * from... (3 Replies)
Discussion started by: newbielgn
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4. Shell Programming and Scripting
Hi all,
I would like to store the output of a command in a variable and output it to the console at the same time. This is working fine using the following construct
var=`command | tee /dev/tty`
I use this in some scripts to display the output of the command on the console and, at the same... (2 Replies)
Discussion started by: script_man
2 Replies
5. Shell Programming and Scripting
I want to execute a command something like:
find / -name "jni.h"
and I want to direct the output of that command to some type of
filter that will leave out all the lines reporting inaccessible
directories (permission unavailable). Is this a pipe or a redirect?
For example, output like... (1 Reply)
Discussion started by: downplay
1 Replies
6. Shell Programming and Scripting
HI all,
I want to capture cpu data in batch mode of "top" command and redirect to a file like this:
top -b > cpu.dat
it works!
But I want to capture only Cpu lines, so i have:
top -b | grep ^Cpu >cpu.dat
Then I got an empty output file.
Why?
Could somebody explain and help me to make it... (15 Replies)
Discussion started by: fongthai
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7. AIX
hi all,
i do search for a file in solaris box in the following format
find / -name 'file' -print 2>/dev/null
i tried the same thing on AIX box;
as i am searching from the root the same way i redirected the errors to /dev/null but find is showing strip off errors and when i just continued... (1 Reply)
Discussion started by: matrixmadhan
1 Replies
8. Shell Programming and Scripting
Hello Everyone,
I have an option for users in my shell script to create log file. So if user saying “yes” on it, I'm redirecting all output to log file by doing this: > /output.log. However I would like the output being displayed on the screen at the same time. Is it possible? If yes, does anybody... (2 Replies)
Discussion started by: slavam
2 Replies
9. UNIX for Dummies Questions & Answers
I have an application which has a lot of cout & cerr statements.
This application also opens a log file (for eg a.log).
When this application is run from the inittab file as follows
/bin/sh -c " . /etc/timezone; exec /test"
all the cout & cerr statements are printed in the log file... (1 Reply)
Discussion started by: soorajmu
1 Replies
10. UNIX for Dummies Questions & Answers
What command do I use in order to save a file in directory A/B/C
to directory A/D/E. (1 Reply)
Discussion started by: JSP
1 Replies
nohup(1) General Commands Manual nohup(1)
NAME
nohup - run a command immune to hangups
SYNOPSIS
command [arguments]
DESCRIPTION
executes command with hangups and quits ignored. If output is not redirected by the user, both standard output and standard error are sent
to If is not writable in the current directory, output is redirected to otherwise, fails. If a file is created, the file's permission bits
will be set to
If output from is redirected to a terminal, or is not redirected at all, the output is sent to
EXTERNAL INFLUENCES
Environment Variables
determines the language in which messages are displayed.
If is not specified in the environment or is set to the empty string, the value of is used as a default for each unspecified or empty vari-
able. If is not specified or is set to the empty string, a default of "C" (see lang(5)) is used instead of
If any internationalization variable contains an invalid setting, behaves as if all internationalization variables are set to "C". See
environ(5).
International Code Set Support
Single- and multi-byte character code sets are supported.
EXAMPLES
It is frequently desirable to apply to pipelines or lists of commands. This can be done only by placing pipelines and command lists in a
single file, called a shell script. To run the script using
features apply to the entire contents of file. If the shell script file is to be executed often, the need to type can be eliminated by
setting execute permission on file. The script can also be run in the background with interrupts ignored (see sh(1)):
file typically contains normal keyboard command sequences that one would want to continue running in case the terminal disconnects, such
as:
WARNINGS
Be careful to place punctuation properly. For example, in the command form:
applies only to command1. To correct the problem, use the command form:
Be careful of where standard error is redirected. The following command may put error messages on tape, making it unreadable:
whereas
puts the error messages into file
EXIT STATUS
The following exit values are returned:
The command specified by
command was found but could not be invoked
An error occurred in the nohup utility or the specified
command could not be found
Otherwise, the exit status of nohup will be that of the command specified.
SEE ALSO
chmod(1), nice(1), sh(1), signal(5).
STANDARDS CONFORMANCE
nohup(1)