I am calling sed from my Makefile, and this line doesn't work:
sed -i -r 's|^(3)$|5|' file;
It's perfectly fine if I call from the terminal, but GNU make reports the following error:
sed: -e expression #1, char 8:
unterminated `s' command
Any ideas how I can fix this, and could you provide any manual on how Makefile deals with strings? Thanks.
$ has a special meaning in makefiles. Use $$ cancel it:
sed -i -r 's|^(3)$$|5|' file;
Related
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'm having a problem with using sed in a bash script.
Here is the line:
sed -i "s/"$name"/"$input"/g" ~/input.script
I'm getting this error:
sed: -e expression #1, char 24: unterminated `s' command
Weirdly enough it was working in an earlier version of my code. I've been trouble shooting but I cannot find a solution.
You don't need nested quotes. Also, try changing the delimeter:
sed -i "s#$name#$input#g" ~/input.script
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]*$/servers=5/' /path/to/file
sed -i.bak "s/servers=[0-9]*/servers=5/" /path/to/file
I am using shell script. My requirement is to find and replace the string. The string contains "/" char as well. I am getting error sed: -e expression #1, char 18: unterminated `s' command. Can someone tell how should i replace the string which has "/"?
#!/bin/bash
...
search_string="../conf/TestSystem/Inst1.xml"
rep="Inst1/Instrument.xml"
sed -i 's|${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}|${rep}|g" MasterConfiguration.xml
Syntax:
sed "s|pattern|replacement|g"
I'm trying to make the sed command replace these:
CURRENT_TOMCAT=/opt/tomcat/lib
NEW_TOMCAT=/usr/tomcat/lib
sed -i "s/$CURRENT_TOMCAT/$NEW_TOMCAT/" tomcat.env
I've tried a bunch of combinations with no success, sometimes getting the unknown option to `s' error, sometimes getting no errors, but no changes are made
The line I that needs to be change looks like this:
TOMCAT_LIB=/opt/tomcat/lib; export TOMCAT_LIB
Try changing the delimiter to another one not contained in your strings. For example, #:
CURRENT_TOMCAT=/opt/tomcat/lib
NEW_TOMCAT=/usr/tomcat/lib
sed -i "s#$CURRENT_TOMCAT#$NEW_TOMCAT#" tomcat.env
^ ^ ^
Test
$ cat a
hello/how are you?
$ old="hello/how"
$ new="bye/how"
$ sed "s/$old/$new/" a
sed: -e expression #1, char 13: unknown option to `s' <---- meeec
$ sed "s#$old#$new#" a
bye/how are you? <---- successful!