Startup Shell Script Warning

[pch13@…]

When I start JOSM in a terminal I see this error/warning message:

/usr/bin/josm: Zeile 61: [: : Ganzzahliger Ausdruck erwartet.

The script in line 61 wants an integer but got something different. I run the code there manually:

$ free --mega
              gesamt      belegt       frei     gemeinsam    Zwischen   verfügbar
Speicher:       16643        8531         484         882        7627        6885

It might work like this:

$ LANG=C free --mega
              total        used        free      shared  buff/cache   available
Mem:          16643        8533         488         876        7621        6890

Running JOSM/1.5 (19230 de) Linux Ubuntu 20.04.6 LTS

[skyper]

See r19215.
So following does only work with system language set to English or C.

# If there is more than 8G ram, we can use up to 75% of the memory while still leaving 2G for other things.
if [ "$(free --mega | grep '^Mem:' | awk '{print $2}')" -gt 8192 ];

Maybe, reading directly from /proc like cat /proc/meminfo is system language independent.

[sebastic]

This should be more reliable as mentioned in #23837:

if [ "$(awk '/^MemTotal:/ {print int($2 / 1024)}' /proc/meminfo)" -gt 8192 ]; then

i.e.:

$ LC_ALL=de_DE.UTF-8 LANG=de_DE.UTF-8 free --mega | grep '^Mem:' | awk '{print $2}'
$ LC_ALL=de_DE.UTF-8 LANG=de_DE.UTF-8 free --mega | grep '^Speicher:' | awk '{print $2}'
67021
$ LC_ALL=de_DE.UTF-8 LANG=de_DE.UTF-8 awk '/^MemTotal:/ {print int($2 / 1024)}' /proc/meminfo 
63916

Or set the locale in the environment for free(1):

if [ "$(LC_ALL=C LANG=C free --mega | grep '^Mem:' | awk '{print $2}')" -gt 8192 ];

[taylor.smock]

In 19234/josm:

Fix #23951: Fix free in startup linux scripts when it is in a localized environment