033-Unit 5 Standard I/O and Pipes
2009-08-04 20:30
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tr 转译：tr 'A-Z' 'a-z' < xxx.txt
cut -f3 -d, -c4-8 显示特定列
sort 排列：-r(反) -u(unique) -f(ignore case character) -t, -k3
ls -l | less
mail -s "last mail" user@xxx.com
xxx
.
cat a.txt | xargs rm -f :删除a.txt中文件名的文件
lpr : 打印
tee ：将输入存档
cut -f3 -d, -c4-8 显示特定列
sort 排列：-r(反) -u(unique) -f(ignore case character) -t, -k3
ls -l | less
mail -s "last mail" user@xxx.com
xxx
.
cat a.txt | xargs rm -f :删除a.txt中文件名的文件
lpr : 打印
tee ：将输入存档
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