名稱:tr ###1.比方說要把目錄下所有的大寫檔名換為小寫檔名? 似乎有很多方式,"tr"是其中一種: #!/bin/sh dir="/tmp/tes td ir"; files=`finddir-typef`; foriinfiles do dir_name=`dirnamei`; ori_filename=`basenamei` new_filename=`echoori_filename|tr
名稱:tr
### 1.比方說要把目錄下所有的大寫檔名換為小寫檔名?
似乎有很多方式,"tr"是其中一種:
#!/bin/sh
dir="/tmp/tes
tdir";
files=`find $dir -type f`;
for i in $files
do
dir_name=`dirname $i`;
ori_filename=`basename $i`
new_filename=`echo $ori_filename | tr [:upper:] [:lower:]` > /dev/null;
#echo $new_filename;
mv $dir_name/$ori_filename $dir_name/$new_filename
done
### 2.自己試驗中...lowercase to uppercase
tr abcdef...[del] ABCDE...[del]
tr a-z A-Z
tr '[:lower:]' '[:upper:]'
shell>> echo "this is a test" | tr a-z A-Z > www
shell>> cat www
THIS IS A TEST
### 3.去掉不想要的字串
shell>> tr -d this ### 去掉有關 t.e.s.t
this
man
man
test
e
### 4.取代字串
shell>> tr -s "this" "TEST"
this
TEST
th
TE