sed 处理文件中 dos CR/LF

sed 处理文件中 dos CR/LF

将dos控制字符^M替换掉;

# IN unix ENVIRONMENT: convert DOS newlines (CR/LF) to Unix format)      sed 's/^M$//'              # in bash/tcsh, press Ctrl-V then Ctrl-M      sed 's/.$//'               # assumes that all lines end with CR/LF       sed 's/\x0D$//'            # gsed 3.02.80, but top script is easier       # IN UNIX ENVIRONMENT: convert Unix newlines (LF) to DOS format       sed "s/$/`echo -e \\\r`/"  # command line under ksh       sed 's/$'"/`echo \\\r`/"   # command line under bash       sed "s/$/`echo \\\r`/"     # command line under zsh       sed 's/$/\r/'              # gsed 3.02.80

# IN DOS ENVIRONMENT: convert Unix newlines (LF) to DOS format       sed "s/$//"                # method 1       sed -n p                   # method 2

# IN DOS ENVIRONMENT: convert DOS newlines (CR/LF) to Unix format    # Cannot be done with DOS versions of sed. Use "tr" instead.       tr -d \r outfile  # GNU tr version 1.22 or higher

Example:删除文件中的所有空行和由空格组成的行; $cat ifile|sed '/^$/d'|sed '/^[[:space:]]*$/d'    # method 1 $cat ifile|sed -e '/^$/d' -e '/^[[:space:]]*$/d'  # method 2

版权声明：本文内容由网络用户投稿，版权归原作者所有，本站不拥有其著作权，亦不承担相应法律责任。如果您发现本站中有涉嫌抄袭或描述失实的内容，请联系我们jiasou666@gmail.com 处理，核实后本网站将在24小时内删除侵权内容。