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.log0
array=(
"rm -f lvr_3531_pf_new"
"arm-hisiv100-linux-gcc "
"In function "
"excess elements in array initializer"
"warning: multi-line comment"
"embedded '\
#!/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.log0
array=(
"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>"
exit
fi
file="$1"0
cp -f $1 $file
function deleteLine()
{
sed "/$1/d" $file > tmp
mv -f tmp $file
}
wc -l $file
for line in "${array[@]}"
do
if [ ${#line} -gt 0 ] && [ ${line:0:1} != "#" ]; then
deleteLine "$line"
fi
done
wc -l $file
' 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>"
exit
fi
file="$1"0
cp -f $1 $file
function deleteLine()
{
sed "/$1/d" $file > tmp
mv -f tmp $file
}
wc -l $file
for line in "${array[@]}"
do
if [ ${#line} -gt 0 ] && [ ${line:0:1} != "#" ]; then
deleteLine "$line"
fi
done
wc -l $file
运行情况：
[feng@bash #69]$./dline.sh c.log 556 c.log0 63 c.log0 [feng@bash #70]$
希望本文所述对大家bash shell学习有所帮助。
您可能感兴趣的文章:
本文由 华域联盟 原创撰写：华域联盟 » Linux bash删除文件中含“指定内容”的行功能示例
转载请保留出处和原文链接：https://www.cnhackhy.com/18532.htm
