# Folding Filenames to Lower Case
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One additional consideration when transferring files to Unix is that the filenames must all be folded to lower case. If your PC-based FTP package does not support an option for this (a problem with the built-in W95 ftp.exe), then we advise getting one that does (such as ZTERM or WS\_FTP Pro.) If that is not practical, or you forget and end up with thousands of files with mixed upper and lower case names, there is a utility script called **trlcs** in the /vm/miame/bin directory which will properly fold one or more filenames (based on a wildcard spec) in a single directory to lower case. It does, however, require that you execute the command in each of your directories. For example:
\$ cd /vm/miame/dsk0/020001
\$ trlcs '\*'
\$ cd ../020002
\$ trlcs '\*'
(Note that if a wildcard specification is given, it must be quoted.) If for some reason you do not have the **trlcs** command, you can create it by typing in the following and then using chmod +x trlcs to make it executable:
\# trlcs: converts wildcarded files to lower case names
if \[ \$# \!= 1 \]
then
echo "trlcs converts names of files in wildspec list to lcs"
echo "usage: trlcs \\047wildspec\\047 (wildspec must be quoted)"
else
for f in \$1; do
mv \$f \`echo \$f | tr A-Z a-z\`
done
fi