Linux bash删除文件中含指定内容的行功能示例

linux  /  管理员 发布于 7年前   167

本文实例讲述了Linux bash删除文件中含“指定内容”的行功能。分享给大家供大家参考，具体如下：

#!/bin/sh# 功能:    删除文件中含"指定内容"的行# 运行方式: ./dline.sh c.log  ==> 产生输出文件: c.log0array=(  "rm -f lvr_3531_pf_new"  "arm-hisiv100-linux-gcc "  "In function "  "excess elements in array initializer"  "warning: multi-line comment"  "embedded '\\0' in format"  "__NR_SYSCALL_BASE"  "this is the location of the previous definition"  "dereferencing type-punned pointer will break strict-aliasing rules"  "differ in signedness"  "but argument is of type"  "implicit declaration of")if [ $# -lt 1 ]; then  echo "Usage: $0 <logfile>"  exitfifile="$1"0cp -f $1 $filefunction deleteLine(){  sed "/$1/d" $file > tmp  mv -f tmp $file}wc -l $filefor line in "${array[@]}"do  if [ ${#line} -gt 0 ] && [ ${line:0:1} != "#" ]; then    deleteLine "$line"  fidonewc -l $file

运行情况：

[feng@bash #69]$./dline.sh c.log556 c.log063 c.log0[feng@bash #70]$

希望本文所述对大家bash shell学习有所帮助。