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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2021-05-20 19:47:55 +0200
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2021-05-21 16:32:54 +0200
commite839ebe5511028f6032ae53ebb43601c1f4624be (patch)
treef5885697af2295477c99427077af87435431af36 /man/check-os-release.sh
parentman: reorder fields in os-release (diff)
downloadsystemd-e839ebe5511028f6032ae53ebb43601c1f4624be.tar.xz
systemd-e839ebe5511028f6032ae53ebb43601c1f4624be.zip
man: add an example how to correctly read os-release in shell
This is not entirely obvious. The logic of how to interpret the fields applies in any language, so drop the pointless mention of C or shell.
Diffstat (limited to 'man/check-os-release.sh')
-rw-r--r--man/check-os-release.sh10
1 files changed, 10 insertions, 0 deletions
diff --git a/man/check-os-release.sh b/man/check-os-release.sh
new file mode 100644
index 0000000000..2a1a057928
--- /dev/null
+++ b/man/check-os-release.sh
@@ -0,0 +1,10 @@
+#!/bin/sh -eu
+
+test -e /etc/os-release && os_release='/etc/os-release' || os_release='/usr/lib/os-release'
+. "${os_release}"
+
+echo "Running on ${PRETTY_NAME:-Linux}"
+
+if [ "${ID:-linux}" = "debian" ] || [ "${ID_LIKE:-}" = "debian" ]; then
+ echo "Looks like Debian!"
+fi