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guix-install.sh: Gracefully fail on | bash.

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* etc/guix-install.sh (welcome): Print an error message and a hint if
the first read fails.
This commit is contained in:
Tobias Geerinckx-Rice 2022-12-11 01:00:00 +01:00
parent 4a517a012f
commit 6cf6f42334
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1 changed files with 4 additions and 1 deletions
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5
etc/guix-install.sh
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@ -615,7 +615,10 @@ https://www.gnu.org/software/guix/
EOF
# Don't use ‘read -p’ here! It won't display when run non-interactively.
echo -n "Press return to continue..."$'\r'
read -r char
if ! read -r char; then
echo
die "Can't read standard input. Hint: don't pipe scripts into a shell."
fi
if [ "$char" ]; then
echo
echo "...that ($char) was not a return!"