Stdout is the standard output stream is the default destination of regular output for applications.

learn more… | top users | synonyms

6
votes
1answer
1k views

Different output when redirecting

$ mysql -e 'select a,b from tablefoo' databasename yields +---+---+ | a | b | +---+---+ | 1 | 0 | | 2 | 1 | +---+---+ whereas $ mysql -e 'select a,b from tablefoo' databasename > file ...
8
votes
2answers
11k views

How to tar/untar the output on the fly

What is the idiomatic way to do the following tar to stdout read this tar output from stdout and extract to some other folder. My solution is tar --to-stdout .. | tar -C somefolder -xvf - But ...
3
votes
2answers
2k views

What is the use of binary output on stdout?

Some programs print their binary output directly on stdout. Here are some examples: tar -c file.png dd if=file.png Well, I see that the output can be redirected to a file. But these programs ...
47
votes
5answers
35k views

How do you redirect wget to standard out?

I have a crontab that wgets a PHP page every five minutes (just to run some the PHP code), and I want to send the output to standard out. I couldn't find it in the wget manual. I'm looking for ...
1
vote
1answer
507 views

bash - record output after program execution

I know that I can redirect stdout to a file before running a script, but is there a way to access the whole output of a program that already ran? When the output is too long it gets cut out by the ...
0
votes
1answer
33 views

Piping results back into the program that generates them

I've got a program that can take input from stdin and produces output in the stdout like this: cat initial_input.txt | myprogram myindex myoptions - | filter_output > outfile.txt The program ...
22
votes
9answers
14k views

Log rotation of stdout?

I have a Linux program which can write information to stdout and stderr. I have a shell script which redirects that output to a file in /var/log. (Via >> and 2>&1.) Is there a way to ...
6
votes
2answers
5k views

Redirect 7-Zip's command-line output to /dev/null on Windows when extracting a .7z file

I have a command such as "C:\Program Files\7-zip\7z.exe" x foo.7z -y which will extract (with full paths) to the current directory. What it does that I don't want, though, is to spool out the ...
12
votes
2answers
23k views

Windows: Command line redirection to text file while also seeing output

I'm writing a C program in Windows, my printf calls print to the command line, and I know that I can redirect all this output to a text file using: myProgram.exe > mylog.txt However, I wish to ...
1
vote
1answer
152 views

Do each application need to support writing to /dev/stdout or /dev/fd1 or is that handled transparently by the OS?

I tried this command to print the buffer of an existing screen session to stdout but I don't know why it doesn't print anything. screen -x lftp -X hardcopy /dev/fd/1 screen -x lftp -X hardcopy ...
3
votes
1answer
2k views

copy (split?) stdout instead of redirecting it

In Bash, I'd like to redirect stdout to a file (>> mylog.txt) but also see the stdout output on the screen.. How can I do it with bash?
5
votes
3answers
4k views

Windows how to redirect file parameter to stdout? (Windows equivalent of `/dev/stdout`)

Windows console: Tool A can write binary data to a file, but has no option for telling it to use stdout. Tool B can read binary data from stdin and process the info in it. How can I get the output ...
2
votes
2answers
211 views

Doing arithmetic and passing it to the next command

I know how to do this in /bin/sh, but I'm struggling a bit in Windows. I know you can do arithmetic on 32-bit signed integers with SET /a 2+2 4 But how do I pass this to the next command? For ...
1
vote
2answers
1k views

pipe a program into less

I'm taking the dive into setting up and learning git and at the same time learning bash. I'm trying to do something simple as view the help section of $ git config unfortunately, when I type that ...
1
vote
2answers
516 views

Keep stdout on screen AND in File

I open a command prompt window in XP. There I run a command line program (foo.exe) and I want to capture stdout in a file. So I run it like this: foo > fooResult.txt However, at the same time I ...
2
votes
3answers
1k views

java -version doesn't write to stdout?

Either I'm doing something silly or Sun is. How come something like: java -version > version.txt Still prints out to stdout and leaves version.txt empty? I'm checking out the exit code, and it's ...
0
votes
3answers
306 views

linux output show only right of ':'

I forgot a lot of my command line. I am doing cat file | grep "error" and i would like it to show everything to the right of G:/ including G:/ if possible. I figure its an awk command but i dont know ...
0
votes
0answers
467 views

user crontabs don't work, only /etc/crontab

Hi when I use the command crontab -e to set up cron, the commands get triggered (according to syslog) but nothing happens. Also if I run sudo crontab -e. The only way to actually get cron working ...
3
votes
2answers
2k views

stdout and stderr of script doesn't get redirected when executed by cron

./script &>> log.txt I get a nice logfile, but if I have the same command executed by cron, lets say the crontab looks like this: * * * * * '/home/user/script &>> /home/user/log.txt' ...
0
votes
1answer
140 views

stdout and key press

when in console, if I press a key, some interrupt controller sends code of that key to CPU, which looks into some table and than represent that keypress by printing some charracter to stdout. But, is ...
9
votes
1answer
7k views

tee for Windows?

Does Windows provide the basic tee facility for copying standard input to an arbitrary set of files and then back out to standard output? I generally download a generic tee program, but curious if ...
1
vote
1answer
2k views

How to I configure Eclipse PDT 2.1 to display PHP CLI output in the console?

Starting with a recent version of Eclipse PDT, the standard out and standard error from executed PHP CLI code doesn't appear in the console anymore. (It still shows up in the Debug-perspective in the ...