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Asked: 2026-05-11T09:34:52+00:00

This checks if a file exists: #!/bin/bash FILE=$1 if [ -f $FILE ]; then

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This checks if a file exists:

#!/bin/bash  FILE=$1      if [ -f $FILE ]; then    echo "File $FILE exists." else    echo "File $FILE does not exist." fi

How do I only check if the file does not exist?

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1 Answer

  1. The test command (written as [ here) has a "not" logical operator, ! (exclamation mark):

    if [ ! -f /tmp/foo.txt ]; then     echo "File not found!" fi
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