Bug 1463542

Summary:	script doesn't wait for command completion when running non-interactive
Product:	Red Hat Enterprise Linux 7	Reporter:	Leos Pol <lpol>
Component:	util-linux	Assignee:	Karel Zak <kzak>
Status:	CLOSED WONTFIX	QA Contact:	qe-baseos-daemons
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	7.4	CC:	bblaskov, lpol
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	1463545 (view as bug list)		Environment:
Last Closed:	2017-06-23 07:38:44 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1463545, 1463550

Description Leos Pol 2017-06-21 08:29:21 UTC

Description of problem:
Script prematurely exits before command when running in non-interactive shell. See steps and additional sections for more info.

Version-Release number of selected component (if applicable):
util-linux-2.23.2-43.el7

How reproducible:
always

Steps to Reproduce:
1. # script -c 'sleep 1;echo run' < /dev/null && echo finished

Actual results:
Script started, file is typescript
Script done, file is typescript
finished
# run   < this is output from script's command
# 

Expected results:
Script started, file is typescript
run
Script done, file is typescript
finished

Additional info:
Actually "exits" is not the right term here. Script command is running but its parent become PID=1. That's the reason why chained command is executed before script finishes. Also it could block using bash scripts with util-linux's script in for example jenkins, ansible, and so on.

Comment 2 Karel Zak 2017-06-21 09:48:51 UTC

This issue is fixed since v2.27 by script(1) rewrite.

I have doubts we can fix RHEL version without the command rebase. Is it really so critical issue to rebase script(1) for RHEL7.5 ?

The script(1) is originally designed to run interactive session on terminal, use /dev/null as STDIN is not supported for the old versions at all.

Comment 3 Leos Pol 2017-06-23 07:38:44 UTC

I can't evaluate how critical this issue is for customers, but my usecase is be able to run my bash tool with /usr/bin/script in ansible shell task. Due to this issue my tool has different behavior in interactive terminal vs. ansible.

Anyhow I don't think rebase is justified without customer case and I need to run my script on RHEL >= 5, CentOS >= 6, and Fedora, so I've to workaround this anyway.

Closing as WONTFIX.

Thanks.