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Top Forums UNIX for Beginners Questions & Answers Bash find version of an installed application but if none is found set variable to App Not Installed Post 303040322 by RudiC on Saturday 26th of October 2019 01:07:11 PM
Old 10-26-2019
Your commands won't work; you need at least e.g. "command substitution".
Try
Code:
APP=$(application --version 2>/dev/null || echo "not installed")

Be aware that not all applications / tools offer a --version option - their result may be misleading.
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