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16 questions linked to/from Timing out in a shell script
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87 votes
5 answers
71k views

I want to run multiple commands (processes) on a single shell. All of them have own continuous output and don't stop. Running them in the background breaks Ctrl-C. I would like to run them as a single ...
user1876909's user avatar
  • 972
46 votes
5 answers
138k views

I want to run a shell script that got a loop in it and it can go for ever which I do not want to happen. So I need to introduce a timeout for the whole script. How can I introduce a timeout for the ...
Radek's user avatar
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60 votes
2 answers
25k views

I want know how I can run a command for a specified time say, one minute and if it doesn't complete execution then I should be able to stop it.
nikhil's user avatar
  • 1,062
23 votes
6 answers
8k views

What would be the closest to a portable way to get the display width (on a terminal at least (one that displays characters in the current locale with the correct width)) of a string of characters from ...
Stéphane Chazelas's user avatar
  • 585k
10 votes
3 answers
18k views

I want to start a process from a shell script, allow it to interact with the user (so I cannot just background it, grab the PID, launch sleep followed by sanity checks and kill), but if it is still ...
user's user avatar
  • 30k
13 votes
3 answers
7k views

Here's the problem: I want to be able to discern if my terminal is capable of decent unicode or not, in order to use some characters or not, much like glances does, that sometimes uses colors and ...
Álex's user avatar
  • 241
14 votes
3 answers
10k views

Considering a scenario where a Parent program (could be a C++ program or a Shell Script) executes a Child shell script, when we hit Control+C (or whatever character is configured to be the INTR ...
Guddu's user avatar
  • 253
23 votes
1 answer
4k views

The GNU coreutils timeout command is extremely handy for certain scripting situations, allowing for using the output of a command if it is quick to run, and skipping it if it would take too long. How ...
Wildcard's user avatar
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2 votes
2 answers
3k views

Look at this code: while read -t 3 line; do echo ${line} done < /opt/data.log data.log is a fifo. One process is writing to this, and this code should be reading it to show to the user. But I ...
Majid Azimi's user avatar
  • 3,198
5 votes
1 answer
2k views

Suppose I have the Python script: #!/usr/bin/env python input('Y/n: ') print('Next line') After I press Y, I want both the terminal and my output.txt containing: Y/n: Y Next line Running the ...
simonzack's user avatar
  • 752
3 votes
3 answers
2k views

This script was posted as answer to a Question. And I'm trying to work out what's going on. result=$( { { ssh host app-status >&3 3>&-; echo "$?" } | { until read -...
X Tian's user avatar
  • 10.7k
0 votes
2 answers
2k views

It took me 10 hours of searching the net, and testing techniques to get the results that worked on any shell (#!/bin/sh). In BASH this is relatively simple, because read can be told how many ...
Paul Wratt's user avatar
  • 334
2 votes
2 answers
5k views

I have bash script and I would like to set time limit for it. For example if scripts runs longer than 50s, exit with 0. It should be done inside script, I can not change the command how script is ...
Rokas.ma's user avatar
  • 573
2 votes
3 answers
3k views

Below is my code snippet. idql -n $REPOSITORY_NAME.$cs -Udmadmin -P"" -R$DM_SCRIPTS/test.api > /dev/null 2>&1 if [ $? != 0 ]; then echo " \c" echo "ERROR: Cannot connect ...
Vishnu's user avatar
  • 31
5 votes
1 answer
2k views

Based on what I have learned so far, a terminal has only one session, and a session has one or more process groups, and a process group has one or more processes. The following image illustrates this: ...
user259392's user avatar
  • 93

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