Sed cannot handle variables - Codes Helper - Programming Question Answer

Sed cannot handle variables

this is the content of my sh file:

for file in *.html
do
aa=`grep -o "<div id\=\"vdl.*" $file `
bb=`grep -o "<a href\=\"inde.*<\/a>"  $file `
sed -i "s/$aa/$bb/g"  $file
done

execute: bash-x. / 1.sh
the result is as follows

+ for file in *.html
PP grep -o "<div id\=\"vdl.*" 10621997.html
+ aa="<div id="vdl"><script>show_vdl();</script> </div><div id="vfmt"><script>show_vfmt();</script> </div><div id="vf1"><script>show_vf1();</script></div><div id="vf2"><script>show_vf2();</script></div><div id="footlink"><a href="10621996.html"></a>  <a href="/ "
PP grep -o "<a href\=\"inde.*<\/a>" 10621997.html
+ bb="<a href="index.html"></a></div><div id="linkright"><a href="10621996.html"></a> |   | <a href="10621998.html"></a>"
+ sed -i "s <div id="vdl"><script>show_vdl();</script> </div><div id="vfmt"><script>show_vfmt();</script> </div><div id="vf1"><script>show_vf1();</script></div><div id="vf2"><script>show_vf2();</script></div><div id="footlink"><a href="10621996.html"></a>  <a href="/  <a href="index.html"></a></div><div id="linkright"><a href="10621996.html"></a> |   | <a href="10621998.html"></a>  10621997.html"
sed:-e  -sharp1 46:"s" 
+ for file in *.html
PP grep -o "<div id\=\"vdl.*" 10621998.html
+ aa="<div id="vdl"><script>show_vdl();</script> </div><div id="vfmt"><script>show_vfmt();</script> </div><div id="vf1"><script>show_vf1();</script></div><div id="vf2"><script>show_vf2();</script></div><div id="footlink"><a href="10621997.html"></a>  <a href="/ "
PP grep -o "<a href\=\"inde.*<\/a>" 10621998.html
+ bb="<a href="index.html"></a></div><div id="linkright"><a href="10621997.html"></a> |   | <a href="10621999.html"></a>"
+ sed -i "s <div id="vdl"><script>show_vdl();</script> </div><div id="vfmt"><script>show_vfmt();</script> </div><div id="vf1"><script>show_vf1();</script></div><div id="vf2"><script>show_vf2();</script></div><div id="footlink"><a href="10621997.html"></a>  <a href="/  <a href="index.html"></a></div><div id="linkright"><a href="10621997.html"></a> |   | <a href="10621999.html"></a>  10621998.html"
sed:-e  -sharp1 46:"s"

ask for advice on how to change it, thank you.

Feb.19,2022

sed -i "s|$aa|$bb|g"  $file

try this

I estimate that a sed command can only handle a single line of content, not two lines
, so I took a different approach and solved it.

for file in *.html
do
grep -o  '<a href\=\"inde.*<\/a>'  $file  > /tmp/linshi
sed  -i -e '/<div id\=\"vdl/r /tmp/linshi'  -e '/<div id\=\"vdl/d'  $file
done

Previous: Is there any hardware of intelligent card reader that can dock with WeChat Mini Programs?

Next: WeChat Mini Programs: how to solve the problem that the server returns json data with a space in the header?

How to fork new processes in shell?
< H1 > demand < H1 > needs to execute two commands in one sh file, as follows 1. tail -f log.txt 2. tail -f log2.txt is it feasible because both commands will cause terminal blocking? Or is there any other alternative solution. ...

Bash shell

Mar.03,2021
Jenkins deployment front-end project failed
failed to build a front-end project using jenkins, which is a problem when viewing jenkins s console log. this shows that the react-router-dom module cannot be found. But I was fine when I was on the local build. Excuse me, what is the problem? ...

Javascript jenkins-ci jenkins bash shell

Mar.04,2021
I would like to ask the Node program, how to modify the PATH variable of Windows ah? Add a variable.
specifically refers to Electron applications, but if Node can do it, it s the same. We have some exe files to use in the program, so we need to make sure that the environment variables are normal when the program starts, and then run these command as ...

Bash shell node.js

Mar.12,2021
Why did I update oh my zsh on May 21 and got it wrong?
an error is reported after the update. Please help us to see how to solve it. Thank you ....

Bash shell

Mar.13,2021
How does shell capture git checkout command failure scenarios?
< H2 > problem description < H2 > while writing a shell script, I need to git checkout to a branch after cd to a directory. however, in some cases, git checkout fails because the artificial modification file is not submitted. < H2 > excuse me < H2...

Git bash shell

Mar.17,2021
The problem of parameter shift of $1 in the case of Shell for loop
see the following code in shell scripting cookbook test.sh -sharp! bin bash if [ $-sharp -ne 3 ]; then echo "Usage: $0 URL -d DIRECTORY" exit -1 fi for i in {1..4}; do case $1 in -d) shift directory=$1 ...

Bash shell

Mar.23,2021
How Linux restricts the ports that users can use
for example: restrict user A to run nginx (or other services) only on specific ports (such as 8080) ...

Bash shell linux

Apr.01,2021
The problem of character Reading of read Command in linux
when using read, the following problems are encountered, which are not consistent with what you think. The code and results are as follows -sharp! bin bash IFS= read -d - var1 var2 <<< " 123 -" printf "%s n" "...

Linux bash shell

May.24,2021
The awk command loses the first line of while
1. There is a text test.log, content that is: 1 an A 2 b B 3 c C 2. Execute while to get normal output cat test.log |while read item;do echo $item;done 1 an A 2 b B 3 c C 3. But executing while+awk loses the first line cat test.log |while r...

Linux bash shell

Sep.16,2021
When the server restarts, the scheduled tasks configured on the Linux to run every minute will run immediately or wait a minute to run again.
if the task is executed immediately, is there any way to postpone it for a period of time? Ask the boss to answer ...

Bash shell

Sep.21,2021
A script that batch replaces the special symbol file name of a space
for example, the files in the csv directory below lf-orders-2018-11-20 (1700) .csv lf-orders-2018-11-20 17002.csv file names contain spaces and are interspersed with parentheses in both Chinese and English. You need to replace them with an underscor...

Bash shell linux

Feb.15,2022
Ssh is performed through the linux subsystem of win10. After the local terminal adjusts the size, the remote end cannot recognize the size change.
1, if you use the linux that comes with win10 to ssh 1: 2, use cmd to ssh other ssh software can display normally, the picture is not posted, wsl local adjustment normal response far end is centos no usr bin resize Type stty cols xx stty...

Windows linux bash shell

May.09,2022
Laravel,linux,xshell executes the crontab scheduled task, and the scheduled task log executes normally, but the log write in laravel is not performed.
the environmental background of the problems and what methods you have tried in laravel framework, linux environment, xshell executes crontab scheduled tasks, they said that the root directory of the executed project is the absolute path, which I...

Linux laravel bash shell php

May.15,2022

Menu