4-文件篇

文件存在性

#!/bin/bash echo "please input file name" read f_name if [ -z $f_name ] then echo "you don't input any file name" fi if [ -f $f_name ] then echo "The file. exits $f_name" else echo "No such. file" fi exit 0

文件操作

#!/bin/bash ARGS=1 if [ $# -ne $ARGS ] then echo "`basename $0` filename" exit 0 fi if [ ! -f $1 ] then echo "No such file" exit 0 fi sed -e 's/\.//g' -e 's/\.//g' -e 's//\ /g' "$1" | tr 'A-Z' 'a-z' | sort | uniq -c | sort -nr exit 0