I have following code:
<code>config_path="mypath/"
outD="outDir/"
for doms in Germ500 Port500 Spai500;do
echo "animating for: ${doms}"
config_name="${doms}_config.toml"
# Check if the Germ500_titt_20240903T0000_animation.html exists, otherwise make new
#
[ ! -f "${outD}${doms}_titt_[????????]T[????]_animation.html" ] && echo "File does not exist: make new" || echo "${outD}${doms}_titt_[????????]T[????]_animation.html exist"
done
</code>
<code>config_path="mypath/"
outD="outDir/"
for doms in Germ500 Port500 Spai500;do
echo "animating for: ${doms}"
config_name="${doms}_config.toml"
# Check if the Germ500_titt_20240903T0000_animation.html exists, otherwise make new
#
[ ! -f "${outD}${doms}_titt_[????????]T[????]_animation.html" ] && echo "File does not exist: make new" || echo "${outD}${doms}_titt_[????????]T[????]_animation.html exist"
done
</code>
config_path="mypath/"
outD="outDir/"
for doms in Germ500 Port500 Spai500;do
echo "animating for: ${doms}"
config_name="${doms}_config.toml"
# Check if the Germ500_titt_20240903T0000_animation.html exists, otherwise make new
#
[ ! -f "${outD}${doms}_titt_[????????]T[????]_animation.html" ] && echo "File does not exist: make new" || echo "${outD}${doms}_titt_[????????]T[????]_animation.html exist"
done
How can I fix the command?
I tried the following:
[ ! -f "${outD}${doms}_titt_[0-9]{8}T[0-9]{4}_animation.html" ] && echo "File does not exist: make new" || echo "${outD}${doms}_titt_[????????]T[????]_animation.html exist"
2
The wildcard [????????]T[????] is equivalent to [?]T[?] (character classes only match a single character), which will only match the literal filename ?T?. If you want to match digits, you must use [0-9], i.e. [0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]T[0-9][0-9][0-9][0-9].
But test -f ([ -f … ]) can only handle a single path. Quoting an expression will prevent glob expansion, but even if the glob were expanded, your script would break because, again, -f only handles a single path.
Can I interest you in a find-based solution instead?
<code>if test "$(find "$outD" -maxdepth 1 -name "${doms}_titt_[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]T[0-9][0-9][0-9][0-9]_animation.html" -print -quit)"; then
echo 'file matching pattern exists'
else
echo 'no file matching pattern found'
fi
</code>
<code>if test "$(find "$outD" -maxdepth 1 -name "${doms}_titt_[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]T[0-9][0-9][0-9][0-9]_animation.html" -print -quit)"; then
echo 'file matching pattern exists'
else
echo 'no file matching pattern found'
fi
</code>
if test "$(find "$outD" -maxdepth 1 -name "${doms}_titt_[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]T[0-9][0-9][0-9][0-9]_animation.html" -print -quit)"; then
echo 'file matching pattern exists'
else
echo 'no file matching pattern found'
fi
or a loop-based one?
<code>for file in "$outD/${doms}_titt_"[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]T[0-9][0-9][0-9][0-9]_animation.html; do
if test -f "$file"; then
echo "file $file exists"
else
echo "no file matching pattern found"
fi
break
done
</code>
<code>for file in "$outD/${doms}_titt_"[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]T[0-9][0-9][0-9][0-9]_animation.html; do
if test -f "$file"; then
echo "file $file exists"
else
echo "no file matching pattern found"
fi
break
done
</code>
for file in "$outD/${doms}_titt_"[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]T[0-9][0-9][0-9][0-9]_animation.html; do
if test -f "$file"; then
echo "file $file exists"
else
echo "no file matching pattern found"
fi
break
done
It’s not bullet proof and could lead to unexpected results if you have a file with the literal pattern as name.
Find additional (portable or bash-only) solutions in Test whether a glob has any matches in Bash
2