统计每行出现o字符的数量

awk -Fo ‘{num=(NF-1);{if(num>1)print NR,”line:”,num}}’ filename
awk ‘{print NR,gsub(/\o/,”o”)}’ filename

在每行前插入行号
awk ‘{print NR,$0}’ urfile
cat -n urfile

在每行前插入字符
sed ’s/.*/string&/’ urfile
cat text.txt | sed “s/\(^\)/YES\1/g”

根据分割符取值
echo “/:string:$1$$CoERg7ynjYLsj2j4glJ34.”|cut -d’:’ -f2
echo “/:string:$1$$CoERg7ynjYLsj2j4glJ34.”|awk -F: ‘{print $2}’

 除第一行不打印
cut -d’ ‘ -f2-
awk ‘{$1=”";print}’
sed ’s/^[^[:blank:]]*//’

This entry was posted on 星期三, 10月 3rd, 2007 at 7:32 pm and is filed under Shell. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.