09-04-2013
10 More Discussions You Might Find Interesting
1. Programming
Hi All,
I want to include some shell commands in my c program in linux.
please help..
thanks in advance
esham (5 Replies)
Discussion started by: esham
5 Replies
2. Shell Programming and Scripting
Hi ,
I am having one situation in which I need to run some simple unix commands after doing "chroot" command in a shell script. Which in turn creates a new shell.
So scenario is that
- I need to have one shell script which is ran as a part of crontab
- in this shell script I need to do a... (2 Replies)
Discussion started by: hkapil
2 Replies
3. Programming
Is it ok to use exit() inside a signal handler?
I catch SIGUSR1 in a signal handler and I try to close a file and then exit. The result is inconsistent. Sometimes the process exit and sometimes it returns to the original state before the signal handler was invoked.
Perhaps exit is not legal in... (8 Replies)
Discussion started by: Tuvia
8 Replies
4. Shell Programming and Scripting
Dears,
I'm new in shell scripting and i need your help, i would like to know how can i create a script to ftp to a certain unix/linux machine/server IP address and get a file for example without user intervention? How can i force the script to use a certain username and password to access this... (4 Replies)
Discussion started by: Dendany83
4 Replies
5. Shell Programming and Scripting
When my script deals with large input files like 22Gb or 18 GB the basic commands like sort or join fails when run from inside the shell scripts. Can there be any specific reason for this?
For e.g.
sort -u -t "," -k1,1 a.csv > a.csv.uniq"
sort -u -t "," -k1,1 b.csv > b.csv.uniq"
The... (3 Replies)
Discussion started by: esha
3 Replies
6. Shell Programming and Scripting
How can I find the biggest file in a branch?
I tried
find / \*.\* | xargs du | sort -n 1,1 | head 1
but shell do nothings :(
---------- Post updated at 03:07 PM ---------- Previous update was at 02:41 PM ----------
Solved:
find / -name \*.\* | xargs du | sort -nr | head -n 1 (0 Replies)
Discussion started by: Guccio
0 Replies
7. Shell Programming and Scripting
I have a program dnapars
I execute the program from command line as following:
./dnapars
The program then prompts me some message as a user menu from where I have to select a series of options in the order R U Y R. And then I copy the output file (outfile) in another result file.
I wrote the... (3 Replies)
Discussion started by: deeptisjains
3 Replies
8. Shell Programming and Scripting
I would like to execute a commands in four different servers through ssh at a single instance(simultaneously).
Below are the details with examples,
ssh user1@server1 "grep xxxx logs"
ssh user1@server2 "grep xxxx logs"
ssh user1@server3 "grep xxxx logs"
Each statement will take some... (4 Replies)
Discussion started by: Amutha
4 Replies
9. Shell Programming and Scripting
Hi,
I have coded a program in Haskell using the compiler Hugs and the program requires multiple commands (with parameters) to be entered into it, it then outputs the result of its execution. I need to test a lot of different options (i.e. the parameters) so it would be obvious to automate the... (0 Replies)
Discussion started by: tz742
0 Replies
10. Shell Programming and Scripting
Hello
I'm trying to write simple script to delete archive logs for RMAN, unfortunately it's not working, I tried two way to do that:
#!/bin/ksh
echo "Start ....."
rman target=/ << EOF
RUN {
delete force noprompt archivelog until time 'sysdate-10';
}
EXIT;
EOF
echo "END ..."
echo... (6 Replies)
Discussion started by: samer.odeh
6 Replies
LEARN ABOUT MOJAVE
iofileb.d
iofileb.d(1m) USER COMMANDS iofileb.d(1m)
NAME
iofileb.d - I/O bytes by file and process. Uses DTrace.
SYNOPSIS
iofileb.d
DESCRIPTION
This prints a summary of requested disk activity by pathname, providing totals of the I/O events in bytes. It is a companion to the
iofile.d script - which prints in terms of I/O wait time, not bytes. I/O wait time is a better metric for understanding performance
issues. Both disk and NFS I/O are measured.
Since this uses DTrace, only users with root privileges can run this command.
EXAMPLES
Sample until Ctrl-C is hit then print report,
# iofileb.d
FIELDS
PID process ID
CMD process name
KB kilobytes of disk I/O
FILE file pathname
DOCUMENTATION
See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver-
bose descriptions explaining the output.
EXIT
iofileb.d will sample until Ctrl-C is hit.
SEE ALSO
iofile.d(1M), iosnoop(1M), dtrace(1M)
version 1.00 Feb 20, 2006 iofileb.d(1m)