I am using shell script. My requirement is to find and replace the string. The string contains "/" char as well. I am getting error sed: -e expression #1, char 18: unterminated `s' command. Can someone tell how should i replace the string which has "/"?
#!/bin/bash
...
search_string="../conf/TestSystem/Inst1.xml"
rep="Inst1/Instrument.xml"
sed -i 's|${line}|${rep}/g' MasterConfiguration.xml
I tried using another sed command but that one also gave error sed: -e expression #1, char 13: unknown option to `s'
sed -e "s/${line}/${rep}/g" MasterConfiguration.xml > tempfile
Whenever you deal with shell-variables you have to get them out of the "sed-string":
For example:
sed -e "s/"${line}"/"${rep}"/g" MasterConfiguration.xml > tempfile
Otherwise sed will treat the chars as-is and search for ${line} literally:
As you see, nothing happens here.
Furthermore, if your variables contain / you need to use another delimiter for sed. I tend to use ~ in such a case, but you're free to use other chars - just be consequent and don't mix them like in your first example-sed-command:
sed 's~'${line}'~'${rep}'/g' //WRONG
sed 's~'${line}'~'${rep}'~g' //RIGHT
Combine both and it will work:
You can try this sed,
sed -i "s#${line}#${rep}#g" MasterConfiguration.xml
Problem:
Instead you have,
sed -i "s|${line}|${rep}/g" MasterConfiguration.xml
It should be,
sed -i "s|${line}|${rep}|g" MasterConfiguration.xml
Syntax:
sed "s|pattern|replacement|g"
Related
Following is the xml file in which STORAGE_ACCOUNT_KEY should be replaced with EoKpaH0W/kqTv9awgIpQX5s+qQwGzXUSxMxhRjfSWG7SIUTWhut1OYQkNxhb3/9UKGf+g4tc3UaC0zKMTSrTNg==
<property>
<name>fs.azure.account.key.storageaccountname.blob.core.windows.net</name>
<value>STORAGE_ACCOUNT_KEY</value>
</property>
I have tried the following. But nothing helps me solve it.
Using / after s and before g
sed -i "s/STORAGE_ACCOUNT_KEY/EoKpaH0W/kqTv9awgIpQX5s+qQwGzXUSxMxhRjfSWG7SIUTWhut1OYQkNxhb3/9UKGf+g4tc3UaC0zKMTSrTNg==/g" test.xml
Error:-
sed: -e expression #1, char 32: unknown option to `s'
Using | after s and before g
sed -i "s|STORAGE_ACCOUNT_KEY/EoKpaH0W/kqTv9awgIpQX5s+qQwGzXUSxMxhRjfSWG7SIUTWhut1OYQkNxhb3/9UKGf+g4tc3UaC0zKMTSrTNg==|g" test.xml
Error:-
sed: -e expression #1, char 112: unterminated `s' command
Note:- $STORAGE_ACCOUNT_KEY is a dynamic variable as below
sed -i "s|STORAGE_ACCOUNT_KEY/$STORAGE_ACCOUNT_KEY|g"
To replace XML, I would adivse to use an XML parser (for example xmllint) instead of sed.
That said, your sed expression is wrong.
sed s command uses 3 delimiters (any printable character you want), but these 3 must be the same and is defined by the one right after the s command.
s/foo/bar/g # right
s|foo|bar|g # right
s|foo/bar|g # wrong
Since you replace a string with a base64 string, you should not use any of the base64 character, so don't use / as a sed delimiter in that case.
Your expression should be like this:
sed -i "s|STORAGE_ACCOUNT_KEY|EoKpaH0W/kqTv9awgIpQX5s+qQwGzXUSxMxhRjfSWG7SIUTWhut1OYQkNxhb3/9UKGf+g4tc3UaC0zKMTSrTNg==|g" test.xml
Note that the g modifier at the end of the command might not be necessary if you only have 1 string to replace per line.
How to remove all occurences of string "???" of a file and save it?
My approach so far:
cat file.txt | sed -ie '/s/???//' file.txt
However I get the following error:
sed: -e expression #1, char 4: unknown command: `?'
You can use this sed command:
sed -i 's/???//g' file.txt
There is no reason to use cat here as sed can directly operate on a file and save it in-line.
Also note that unlike other regex flavors BRE (Basic Regular Expressions) which is default regex engine of sed doesn't treat ? as a special regex meta character hence there is no need to escape ? here.
I am trying to use sed in bash script as follows:
#!/bin/bash
for i in `seq 1 10`;
do
j=$(($i-1))
OLD="-option_something something/string1_${j}.txt"
NEW="-option_somehting something/string1_${i}.txt"
sed -e "s/$OLD/$NEW/g" file_to_edit.txt
# sed -e "s/$OLD/$NEW/g" file_to_edit.txt > file_to_edit.txt.tmp && mv file_to_edit.txt.tmp file_to_edit.txt
done
But I keep getting following error:
sed: -e expression #1, char 71: unknown option tos'`
I tried the commented line as well, but it does not work too.
It works fine on command line. I do not know what is the problem in script.
Any suggestions? Thanks.
You have a / in the value of OLD and NEW, which is the same character you're using as the delimiter in your sed expression. So the final expression ends up looking like:
sed -e "s/-option_something something/string1_${j}.txt/-option_somehting something/string1_${i}.txt/g"
Do you see all the / in there? Consider instead:
sed -e "s|$OLD|$NEW|g" file_to_edit.txt
You can use any character as the delimiter for sed's s command.
I have to find a specific text in the file and then replace that text with some new text.
The contents of the file are:
host=100
servers=4
clients=70
I have tried this:
var=$(grep "servers=" /path/to/file)
sed -i "s/${var}/servers=5/g" /path/to/file
But it gives me the error:
sed: -e expression #1, char 2: unterminated `s' command
Note: All I want is to update the value of each of the variable i.e. servers=4 should be replaced by servers=5.
Please help me figure out the solution.
Thanks.
The output of grep ends with a newline character. sed expects the whole command on one line or escaping line breaks.
However, you can easily achieve the complete task with sed only:
sed -i 's/^servers=[0-9]*$/servers=5/' /path/to/file
sed -i.bak "s/servers=[0-9]*/servers=5/" /path/to/file
I have a problem replacing default password hash in config file:
sed -i 's/default_password_crypted: "[^"]*"/default_password_crypted: "\$1\$mF86/UHC\$WvcIcXred6crBz2onWxyac."/' input.txt
i get following error:
sed: -e expression #1, char 74: unknown option to `s'
works:
search pattern: default_password_crypted: "$1$mF86/UHC$WvcIcX2t6crBz2onWxyac."
sed -i 's/default_password_crypted: "[^"]*"/default_password_crypted: "1234567890"/' input.txt
how do i need to write replace pattern for hash ?
thx
You need to escape the literal / inside your replacement as it’s the delimiter:
sed -i 's/default_password_crypted: "[^"]*"/default_password_crypted: "\$1\$mF86\/UHC\$WvcIcXred6crBz2onWxyac."/' input.txt
Or simply use a different character, for example a ,:
sed -i 's,default_password_crypted: "[^"]*",default_password_crypted: "\$1\$mF86,UHC\$WvcIcXred6crBz2onWxyac.",' input.txt
You also don’t need to escape the $ inside the replacement.