Failed to source ~/.bashrc from bash script

Question

In my script, I try to source two files to fetch the variables.

But it failed to get the variables defined in ~/.bashrc.

OS: Ubuntu Desktop 20.04.2 LTS

$ cat debug.sh

#!/usr/bin/env bash

cat > ~/env.sh << EOF
VAR1="123"
EOF

echo "VAR2=456" >> ~/.bashrc

source ~/env.sh
source ~/.bashrc

set -u
echo ${VAR1}
echo ${VAR2}

$ ./debug.sh

123
./debug.sh: line 14: VAR2: unbound variable

Why not just have your shell play Russian Roulette in a game of "Will I start next time?" (dynamic modification of .bashrc -- bad idea...) Use a temporary file instead. — David C. Rankin
– David C. Rankin, Commented Jul 17, 2021 at 6:29
you might give a try replacing source with . to source the file inside the script...example: . ~/.env.sh — ashish_k
– ashish_k, Commented Jul 17, 2021 at 7:11
Don't reuse .bashrc as a common library. Its purpose is to configure an interactive shell. If there is code you want in both a script and in an interactive shell, put that in a 3rd file and source it from both .bashrc and your script. — chepner
– chepner, Commented Jul 18, 2021 at 14:11

zhaoyanggh · Accepted Answer · 2021-07-18 14:09:05Z

0

In the ubuntu version, .bashrc will check whether it is running interactively, if it is not, it will do nothing. Non-interactive means you called it inside another shell, which you can just comment out the following lines in .bashrc.

# If not running interactively, don't do anything

case $- in
*i*) ;;
  *) return;;
esac

answered Jul 18, 2021 at 14:09

zhaoyanggh

2851 silver badge9 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

chepner Over a year ago

That check is there for a reason. Don't comment the lines out just so you can force .bashrc to be used for a purpose it isn't intended.

Collectives™ on Stack Overflow

Failed to source ~/.bashrc from bash script

1 Answer 1

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related