Evaggelos Balaskas - System Engineer

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Using Terraform and cloud-init on Hetzner »
  -  
« Flatpak
Feb
11
2019
exit codes & I/O Redirection
Posted by ebal at 16:18:53 in blog

TLDR; Exit status value does not change when using redirection.

~> false
~> echo $?
1

~> true
~> echo $?
0

~> false > /dev/null
~> echo $?
1

~> true > /dev/null
~> echo $?
0

~> false 1> /dev/null
~> echo $?
1

~> true 1> /dev/null
~> echo $?
0

~> false 2> /dev/null
~> echo $?
1

~> true 2> /dev/null
~> echo $?
0

~> false &> /dev/null
~> echo $?
1

~> true &> /dev/null
~> echo $?
0

~> false 2>&1 >/dev/null
~> echo $?
1

~> true 2>&1 /dev/null
~> echo $?
0

~> false < /dev/null > /dev/null
~> echo $?
1

~> true < /dev/null > /dev/null
~> echo $?
0
Tag(s): bash
    Tag: bash
Using Terraform and cloud-init on Hetzner »
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« Flatpak

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