Working in a bash environment, in the following example, how do I direct the error message that putting in an invalid flag (-j for example) would normally produce to dev/null?
while getopts "abcd" opt
do
case "$opt" in
i) a etc ;;
r) b etc ;;
f) c etc ;;
v) d... (7 Replies)
Hi,
I have a shellscript that produces a csv that can be opened in Microsoft Excel. It has two columns and about 10 rows in each column, so only twenty cells (at the moment). When the user opened the csv, I wanted it so autofilter was already turned on in columns A1 and B1 (and potentially C1,... (1 Reply)
I have an input file having 7 fields delimited by ,
eg :
1,ABC,hg,1,2,34,3
2,hj,YU,2,3,4,
3,JU,kl,4,5,7,
4,JK,KJ,3,56,4,5
The seventh field here in some lines is empty, whereas the other lines there is a value.
How do I insert string NULL at this location (7th loc) for these lines where... (8 Replies)
I am testing some file routines against potential "nasty name" Unix files, such as those with a CR, LF, in the middle or NULL terminated, utf multi-byte character. So, under Bash, I want some way of:
mv "name" "name\0"
with the \0 a real NULL.
Against all my efforts, I have not been... (2 Replies)
Okay so i have a script i wrote in python. I want to turn this script into an INSTALLED COMMAND to run in terminal.
Right now i run it like this in terminal...
$ python myscriptname.py
or
$ ./myscriptname.py
but i want to be able to run it like this in terminal...
$ myscriptname
... (3 Replies)
Hi,
I was just helped with an excellent one liner. Now I need to know how to turn it into a script that I can call at the command line. So, this works with file script:
------------
for file in DATA.txt;
do
awk 'NR==1;NR>1{for (i=1;i<=NF;i++){a+=$i}}END{for (i=1;i<=NF;i++){printf... (3 Replies)
Hi everybody!
I am writing a script which accepts two arguments one of them being a message. All is working except for the message part. That is, to accept text as an argument.
I have trouble storing and echoing a line of text. It seems that writing a few words and store them in an... (6 Replies)
There are 4 parameters that I have to pass from korn shell to sql script.
1) I have to check if $1 , $2 , $3 and $4 are null values or not .
How can I do that ?
2) Once its determined that these values are null (in the sense they are empty) how can I pass null values to sql script... (11 Replies)
I have a shell script which select total count from a table and use its value in a if condition like below
connect_string="username/password@tnsname"
tot=`sqlplus -s $connect_string << EOF
set echo off
set feedback off
set head off
select count(*) from test_table;
EOF
`
if
then
echo... (2 Replies)
I'm new to utilities like socat and netcat and I'm not clear if they will do what I need.
I have a "compileDeployStartWebServer.sh" script and a "StartBrowser.sh" script that are started by emacs/elisp at the same time in two different processes.
I'm using Cygwin bash on Windows 10.
My... (3 Replies)
Discussion started by: siegfried
3 Replies
LEARN ABOUT NETBSD
cpuset_clr
CPUSET(3) BSD Library Functions Manual CPUSET(3)NAME
cpuset_create, cpuset_destroy, cpuset_zero, cpuset_set, cpuset_clr, cpuset_isset, cpuset_size -- dynamic CPU sets
SYNOPSIS
#include <sched.h>
cpuset_t *
cpuset_create(void);
void
cpuset_destroy(cpuset_t *set);
void
cpuset_zero(cpuset_t *set);
int
cpuset_set(cpuid_t cpu, cpuset_t *set);
int
cpuset_clr(cpuid_t cpu, cpuset_t *set);
int
cpuset_isset(cpuid_t cpu, const cpuset_t *set);
size_t
cpuset_size(const cpuset_t *set);
DESCRIPTION
This section describes the functions used to create, set, use and destroy the dynamic CPU sets.
This API can be used with the POSIX threads, see pthread(3) and affinity(3).
The ID of the primary CPU in the system is 0.
FUNCTIONS
cpuset_create()
Allocates and initializes a clean CPU-set. Returns the pointer to the CPU-set, or NULL on failure.
cpuset_destroy(set)
Destroy the CPU-set specified by set.
cpuset_zero(set)
Makes the CPU-set specified by set clean, that is, memory is initialized to zero bytes, and none of the CPUs set.
cpuset_set(cpu, set)
Sets the CPU specified by cpu in set. Returns zero on success, and -1 if cpu is invalid.
cpuset_clr(cpu, set)
Clears the CPU specified by cpu in the CPU-set set. Returns zero on success, and -1 if cpu is invalid.
cpuset_isset(cpu, set)
Checks if CPU specified by cpu is set in the CPU-set set. Returns the positive number if set, zero if not set, and -1 if cpu is
invalid.
cpuset_size(set)
Returns the size in bytes of CPU-set specified by set.
SEE ALSO affinity(3), pset(3), sched(3), schedctl(8), kcpuset(9)HISTORY
The dynamic CPU sets appeared in NetBSD 5.0.
BSD November 2, 2011 BSD