There is a mysterious variable Python responds to, actually!
I don't think stdbuf is applicable unless you're writing to a pipe or TTY. Block or line buffering is not a system feature for file streams, Python must be doing that by itself.
hello
i want to write a script in unix which read file that contains :
hour and process_id like this
file bbb:
0:30 6678
1:40 8789
and for every line he check if the hour greater then 30 minutes
he kill the process_id
the script looks like this
cat bbb | while read line
do ... (1 Reply)
i have a script that read a file which contains process_id and time that he's
in and it lookes like this
0:30 54545
0:44 66788
0:90 23233
i need to read every line in the file and get the time and if the process is greater then 0:30 to kill the process id
the script looks like... (17 Replies)
Hi,
I'm trying to compile the following code:
/************** Begin <test.c> ***************/
/*
* Compiled with: gcc -Wall -o test test.c
*/
#include <stdio.h>
#include <unistd.h>
int main(void)
{
printf("I'm process %d, son of %d \n", getpid(), getppid());
printf("Hello \n");... (3 Replies)
Hi,
I have a process running in the background, which throws up some output to the terminal when I run my script. How can I read this output from my script?
Thank you. (5 Replies)
Hi,
I'm trying to compile the following code:
/************** Begin <test.c> ***************/
/*
* Compiled with: gcc -Wall -o test test.c
*/
#include <stdio.h>
#include <unistd.h>
int main(void)
{
printf("I'm process %d, son of %d \n", getpid(), getppid());
... (5 Replies)
i have edited a script to kill an exact mysql process is causing the high load on the server, my problem is, kill dont kill it!
script:
#!/bin/sh
top -n 1 -u mysql | grep mysqld | awk '{print $1}' > pid
proc='cat pid'
kill -9 $proc
or i try with
kill -9 `top -n 1 -u mysql | grep mysqld... (8 Replies)
Below script perfectly works, giving below mail output. BUT, I want to make the script mail only if there are any D-Defined/T-Transition/B-Broken State WPARs and also to copy the output generated during monitoring to a temporary log file, which gets cleaned up every week. Need suggestions.
... (4 Replies)
Good afternoon
I need to KILL a process in a single command sentence, for example:
kill -9 `ps -aef | grep 'CAL255.4ge' | grep -v grep | awk '{print $2}'`
That sentence Kills the process ID corresponding to the program CAL255.4ge.
However it is possible that the same program... (6 Replies)
Hi Guys,
I want to redirect the output of 3 scripts to a file and then mail the output of those three scripts.
I used below but it is not working:
OFILE=/home/home1/report1
echo "report1 details" > $OFILE
=/home/home1/1.sh > $OFILE
echo... (7 Replies)
I was trying to read the file to create a table in SAS and I got error as follows while I read.
Resource is write-locked by another user. File
=/usr/sas/sas_config/Lev1/SASApp/StoredProcessServer/Logs/SASApp_STPServer_2015-09-29_tmp_18208.log. System Error Code =
0.
ERROR: File is in... (10 Replies)
Discussion started by: Ram Kumar_BE
10 Replies
LEARN ABOUT PHP
stdbuf
STDBUF(1) User Commands STDBUF(1)NAME
stdbuf - Run COMMAND, with modified buffering operations for its standard streams.
SYNOPSIS
stdbuf OPTION... COMMAND
DESCRIPTION
Run COMMAND, with modified buffering operations for its standard streams.
Mandatory arguments to long options are mandatory for short options too.
-i, --input=MODE
adjust standard input stream buffering
-o, --output=MODE
adjust standard output stream buffering
-e, --error=MODE
adjust standard error stream buffering
--help display this help and exit
--version
output version information and exit
If MODE is 'L' the corresponding stream will be line buffered. This option is invalid with standard input.
If MODE is '0' the corresponding stream will be unbuffered.
Otherwise MODE is a number which may be followed by one of the following: KB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for G, T,
P, E, Z, Y. In this case the corresponding stream will be fully buffered with the buffer size set to MODE bytes.
NOTE: If COMMAND adjusts the buffering of its standard streams ('tee' does for example) then that will override corresponding changes by
'stdbuf'. Also some filters (like 'dd' and 'cat' etc.) don't use streams for I/O, and are thus unaffected by 'stdbuf' settings.
EXAMPLES
tail -f access.log | stdbuf -oL cut -d ' ' -f1 | uniq
This will immediately display unique entries from access.log
BUGS
On GLIBC platforms, specifying a buffer size, i.e., using fully buffered mode will result in undefined operation.
AUTHOR
Written by Padraig Brady.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report stdbuf translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
Full documentation at: <http://www.gnu.org/software/coreutils/stdbuf>
or available locally via: info '(coreutils) stdbuf invocation'
GNU coreutils 8.28 January 2018 STDBUF(1)