my pragram runs with 3 threads, 2 work threads, one main thread. the 2 work threads run with the same mode and the same code. but now, one of the work thread can't work, and it uses the cpu more than 80%, sometimes uses 100% cpu resource. the another work thread work well.
when I viewed the HP... (2 Replies)
Hi guys, I had a question last week where I asked how I check from a website hosted on windows if a process is running on on of our unix servers. Vino and Shell Life kindly replied with a perl script:
if qm') -gt 0 ] ; then
echo "Site is up"
else
echo "Site is down."
# start the... (1 Reply)
I have a ksh script that executes a program with a predetermined timeout in minutes. If the program takes longer then the timeout then it still completes with a return code of 0. :confused:
I would like to determine how long the program ran. Then if it takes longer than the timeout I would... (7 Replies)
I have a script that searches for specific information from log files.
#!/bin/sh
sed -n '/*C/,/END/p' /sn/log/OMlog* > crit.out
sed -n '/REPT INITIALIZATION/,/err:/p' /sn/log/OMlog* > switchcc.out
./start.awk /sn/log/OMlog* > ARs.out
./end.awk /sn/log/OMlog* > ARe.out
cat crit.out... (1 Reply)
Does screen command run forever?
Suppose I have following command inserted at my putty shell followed by screen
# screen
# export JAVA_HOME=/usr/java/jdk1.6.0_21
# export ANT_HOME=/usr/ant
# export PATH=$PATH:$JAVA_HOME/bin:$ANT_HOME/bin
# export... (0 Replies)
I have a crontab as below:
PATH=/usr/local/sbin:/bin/:..... etc etc
0 8 * * * /home/user/jobs/poll.sh 2>/dev/null 1>/dev/null
Now the script poll.sh is called at correct time and executes.
This is how poll.sh looks like
#!/bin/bash... (2 Replies)
I have a script like this:
echo "enter filername in lowercase"
read -e filername exec 2>&1
echo "type the start date in format MM/DD/YYYY"
read -e startdate exec 2>&1
echo "enter the end date in format MM/DD/YYYY"
... (2 Replies)
Discussion started by: newbie2010
2 Replies
LEARN ABOUT REDHAT
vwarn
ERR(3) BSD Library Functions Manual ERR(3)NAME
err, verr, errx, verrx, warn, vwarn, warnx, vwarnx, -- formatted error messages
SYNOPSIS
#include <err.h>
void
err(int eval, const char *fmt, ...);
void
errx(int eval, const char *fmt, ...);
void
warn(const char *fmt, ...);
void
warnx(const char *fmt, ...);
#include <stdarg.h>
void
verr(int eval, const char *fmt, va_list args);
void
verrx(int eval, const char *fmt, va_list args);
void
vwarn(const char *fmt, va_list args);
void
vwarnx(const char *fmt, va_list args);
DESCRIPTION
The err() and warn() family of functions display a formatted error message on the standard error output. In all cases, the last component of
the program name, a colon character, and a space are output. If the fmt argument is not NULL, the printf(3)-like formatted error message is
output. The output is terminated by a newline character.
The err(), verr(), warn(), and vwarn() functions append an error message obtained from strerror(3) based on a code or the global variable
errno, preceded by another colon and space unless the fmt argument is NULL.
The err(), verr(), warn(), and vwarn() functions use the global variable errno to look up the error message.
The errx() and warnx() functions do not append an error message.
The err(), verr(), errx(), and verrx() functions do not return, but exit with the value of the argument eval.
EXAMPLES
Display the current errno information string and exit:
if ((p = malloc(size)) == NULL)
err(1, NULL);
if ((fd = open(file_name, O_RDONLY, 0)) == -1)
err(1, "%s", file_name);
Display an error message and exit:
if (tm.tm_hour < START_TIME)
errx(1, "too early, wait until %s", start_time_string);
Warn of an error:
if ((fd = open(raw_device, O_RDONLY, 0)) == -1)
warnx("%s: %s: trying the block device",
raw_device, strerror(errno));
if ((fd = open(block_device, O_RDONLY, 0)) == -1)
err(1, "%s", block_device);
SEE ALSO exit(3), printf(3), perror(3), strerror(3)HISTORY
The err() and warn() functions first appeared in 4.4BSD.
BSD March 6, 1999 BSD