05-04-2011
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What is your system? What is your shell?
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Experts,
I tried to make my cshell script interactive by asking the user for password and trying to read the input using the "read" command. I have been unsuccessful so far. Do you have any idea ?
Thanks
Jim (2 Replies)
Discussion started by: jimmynath
2 Replies
2. Linux
Linux, C++, make, macro
In source code, we used some #ifdef macros. How can I enable #ifdef macro in the command line of "make" (NOTE: I do NOT want to change source code or makefile to define that macro from time to time).
e.g. test.cpp:
...
#ifdef TEST1
// code segment for test1
...... (3 Replies)
Discussion started by: princelinux
3 Replies
3. Shell Programming and Scripting
Hi,
I am new to shell scripting.I have written a very simple shell scipt that asks for the username and password on executing. i.e
echo "Enter username :"
read usrname;
echol "Enter password :";
read passwd;
echo usrname;
echo passwd;
but now I want to make it automatic , such... (2 Replies)
Discussion started by: bhaskar_m
2 Replies
4. Homework & Coursework Questions
Q. Write a script that behaves both in interactive and non interactive mode. When no arguments are supplied it picks up each C program from the directory and prints first 10 lines.
It then prompts for deletion of the file.
If user supplies arguments with the script , then it works on those files... (8 Replies)
Discussion started by: rits
8 Replies
5. Homework & Coursework Questions
I have no idea what the following means. The teacher is too advanced for me to understand fully. We literally went from running a few commands over the last few months to starting shell scripting. I am not a programmer, I am more hardware oriented. I wish I knew what this question was asking... (3 Replies)
Discussion started by: Wookard
3 Replies
6. AIX
Hello,
Script command helps to save command output to file. (Redicection doesn't work in this case).
Besides interactive shell 'recording', Linux script command has "-c" option which allows to record output of some non-interactive command.
The problem is that AIX script command variant... (6 Replies)
Discussion started by: vilius
6 Replies
7. Shell Programming and Scripting
Task A: Make a one-line Unix command - using pipe(s) - to display the number of files in your home directory including the hidden files that begin with '.'
Task B:Make a one-line Unix command - using pipe(s) - to display the number of unique zip codes in famous.dat (hint: use -u on sort)
Task... (1 Reply)
Discussion started by: wises
1 Replies
8. Programming
DELETED (2 Replies)
Discussion started by: ProgMan2015
2 Replies
9. Homework & Coursework Questions
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
1) The script is executed in the Korn shell.
2) Name the shell script file is asg6s.
3) The asg6s file is... (7 Replies)
Discussion started by: ProgMan2015
7 Replies
10. Shell Programming and Scripting
i use this command to make pkgadd non-interactive.
Command1:
echo | sudo /usr/sbin/pkgadd -n -a /u/base/admin -r silent.txt -d /tmp/dbs.pkgThis works fine if i run it as root user but when i run it with non-root user it prompts me for the password and then executes successfully thus making it... (9 Replies)
Discussion started by: mohtashims
9 Replies
LEARN ABOUT DEBIAN
psignal
PSIGNAL(9) BSD Kernel Developer's Manual PSIGNAL(9)
NAME
psignal, pgsignal, gsignal -- post signal to a process or process group
SYNOPSIS
#include <sys/types.h>
#include <sys/signalvar.h>
void
psignal(struct proc *p, int signum);
void
pgsignal(struct pgrp *pgrp, int signum, int checkctty);
void
gsignal(int pgid, int signum);
DESCRIPTION
These functions post a signal to one or more processes. The argument signum common to all three functions should be in the range [1-NSIG].
The psignal() function posts signal number signum to the process represented by the process structure p. With a few exceptions noted below,
the target process signal disposition is updated and is marked as runnable, so further handling of the signal is done in the context of the
target process after a context switch. Note that psignal() does not by itself cause a context switch to happen.
The target process is not marked as runnable in the following cases:
o The target process is sleeping uninterruptibly. The signal will be noticed when the process returns from the system call or trap.
o The target process is currently ignoring the signal.
o If a stop signal is sent to a sleeping process that takes the default action (see sigaction(2)), the process is stopped without
awakening it.
o SIGCONT restarts a stopped process (or puts them back to sleep) regardless of the signal action (e.g., blocked or ignored).
If the target process is being traced psignal() behaves as if the target process were taking the default action for signum. This allows the
tracing process to be notified of the signal.
The pgsignal() function posts signal number signum to each member of the process group described by pgrp. If checkctty is non-zero, the sig-
nal will be posted only to processes that have a controlling terminal. pgsignal() is implemented by walking along the process list headed by
the field pg_members of the process group structure pointed at by pgrp and calling psignal() as appropriate. If pgrp is NULL no action is
taken.
The gsignal() function posts signal number signum to each member of the process group identified by the group id pgid. gsignal() first finds
the group structure associated with pgid, then invokes pgsignal() with the argument checkctty set to zero. If pgid is zero no action is
taken.
SEE ALSO
sigaction(2), signal(9), tsleep(9)
BSD
June 22, 1996 BSD