stdout is the name of the default output file descriptor of a process. Since there is nothing special about `stdout`, you *should not* use this tag. Use [tag:io-redirection] for questions on how to redirect output, use [tag:file-descriptors] for questions on how to manage file descriptors, use ...

learn more… | top users | synonyms

0
votes
4answers
85 views

How to log from inside the script along with stdout

I am aware that I can log using tee But I want to log from inside my script, at the same time display the content on the stdout. Example, my code looks something like this: names=$(print("name1 ...
1
vote
1answer
26 views

`docker logs foo | less` isn't searchable or scrollable but `docker logs foo 2>&1 | less` is

Using either one gives readable text. But only with the stderr redirect can one scroll or type /somepattern and get matches. Without it searching gives "Nothing to search (press RETURN)" and a ...
1
vote
1answer
117 views

capture log of ufsdump when backup to stdout

I am backing a file system with ufsdump. In order to gain space in the remote file system I backup to stdout then pipe the output to compress. I find is more efficient that backuping up and then ...
1
vote
1answer
185 views

Dynamic ~/.ssh/config

I'd like make my ~/.ssh/config file dynamically generated by a shell script (or anything else that prints to STDOUT). Is there a UNIX trick to make reading a file result in executing a command & ...
1
vote
0answers
20 views

non-blocking/multi-threaded cat

cat is blocking from what I see in the code, i.e. it uses blocking read() and then it uses blocking write(). I want to call some tool where I disable all stdout buffering by purpose (e.g. like ...
1
vote
0answers
14 views

Suppress warning of rbenv versions if no rubies installed

At the moment I'm working on Ansible role that installs ruby with rbenv. In order not to install same ruby version every time I run setup task I have to check that no needed ruby is already installed. ...
1
vote
0answers
175 views

Text replace literally *all* instances of a string through stdin, stdout

Linux, or specifically Ubuntu 14.04 LTS Server if necessary (and CENTOS 6.5/7 minimal would be nice). If I enter "FOO" at the command line, (regardless of whether as a word or as a substring), I'd ...
0
votes
0answers
17 views

Where is the logging of an application launched from the GUI buffered before being sent to a log file?

This is a fairly difficult question for me to word, but I'll try my best. When I launch an application from the terminal, say, Banshee as an example (so banshee to launch from terminal), I can see ...
0
votes
0answers
19 views

Piped sequence - printing

I need to write a piped sequence of commands that prints out a list of all sub directories of a current directory. In order to get all sub directories of a current directory I use: ls -D Since I am ...
0
votes
0answers
99 views

Stop stdout log being clipped (by heroku-local)

I run heroku local with the Procfile: web: start-nginx gunicorn -c gunicorn.conf.py app:app start-nginx does some environment setup, and then ends with: { nginx --some-params & $@ ; } the ...
0
votes
0answers
32 views

fs_usage: a part of stdout is missing.. Where did it go?

I'm using $ fs_usage -f diskio to spy on processus when I hear my hard drive spinning for no reason, so that I know who is working so hard.. Here is one sample line: 16:14:13.785568 ...