I want to use the "--totals" option in GNU tar for some reporting, however I have discovered that it writes the output to stderr not stdout and I would like to know why. This is running from BASH.
Code:
mkdir /tmp/test
touch /tmp/test/foo.file
cd /tmp/
tar --totals -clpzf test.tar.gz test 2> /tmp/tar.stderr 1> /tmp/tar.stdout
the tar command runs without error.
Code:
echo $?
0
The output of "--totals" ends up in stderr.
Code:
$ cat /tmp/tar.stderr
Total bytes written: 10240 (10KiB, 3.8MiB/s)
This is perl, v5.6.1 built for MSWin32-x86-multi-thread
-----------
i thought to pass the stderr to the subroutine which writes in a log file..
when i use
&log_message(\*STDERR);
in the log file instead of the error messages, i am getting only this word
____________::GLOB(0x1ab507c)
... (1 Reply)
Hi Friends,
Can any of you explain me about the below line of code?
mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`
Im not able to understand, what exactly it is doing :confused:
Any help would be useful for me.
Lokesha (4 Replies)
Doubt regarding using "exec" command to redirect the STDERR to a file. e.g I did it this way.
mystage.sh
#!/bin/sh exec 2>stage.err
....
....
cat stage.err
mv: cannot move `/root/stage' to a subdirectory of itself, `/root/stage_old/stage'
ls: *.zDB: No such file or... (0 Replies)
I am trying to use one global declaration --> "exec 2>$ERR" to capture all stderr outputs that may occur anywhere in my script.
Then close it at the end of the script using --> "exec 2<&-"
I am using KSH on Solaris 8.
KSH Version M-11/16/88i
If I comment two "exec .." statements in the... (11 Replies)
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
Hi, I'm running a program (Python) whose output I would like to redirect to a log. But the program calls a library (that I cannot change), which outputs all sorts of useless information.
I would like to redirect all output from my Python program into this log, except output that matches the... (7 Replies)
I came across and unexpected behavior with redirections in tcsh. I know, csh is not best for redirections, but I'd like to understand what is happening here.
I have following script (called out_to_streams.csh):
#!/bin/tcsh -f
echo Redirected to STDOUT > /dev/stdout
echo Redirected to... (2 Replies)
How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address
and column 3 contains “cc” e-mail address to include with same email.
Sample input file, email.txt
Below is an sample code where... (2 Replies)
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies
LEARN ABOUT DEBIAN
pipebench
pipebench(1)pipebench(1)NAME
pipebench - Shows speed of stdin/stdout communication
SYNOPSIS
pipebench [ -ehqQIoru ] [ -s file | -S file ] [ -b bufsize ]
DESCRIPTION
Measures the speed of stdin/stdout communication.
OPTIONS -h Displays a help message and exits.
-e If an error occurs, exit (breaking the pipe between stdin and stdout. By default an error message is printed to stderr and the pro-
gram continues.
-q Only show summary stats.
-Q Don't show running speed or summary stats. Same as -q -o. Can be used to play with buffer size.
-o Don't show summary.
-b bufsize
Use this buffer size, in bytes.
-r Just show raw speed, no fancy stuff. And no summary.
-s file
Write status to file instead of stderr.
-S file
Write status to file instead of stderr.
-I Use 1kB = 1000B, instead of the default 1024B.
-u Don't convet to units (kilo, Mega, etc...)
EXAMPLES
Benchmark and show progress of backup
# (cd /home/; tar cf - .) | pipebench | (cd /mnt/backup/; tar xf -)
A number to brag to your friends about
$ dd if=/dev/zero bs=80k count=60k 2> /dev/null | ./pipebench -q > /dev/null
BUGS
No known bugs... yet.
SEE ALSO dd(1), cat(1)AUTHOR
Pipebench was written by Thomas Habets <thomas@habets.pp.se>
pipebench 18th Apr, 2003 pipebench(1)