All Questions
84
questions
0
votes
1
answer
74
views
complicated command replace in files using sed [duplicate]
I want to replace the below strings
replace: print 'Status Code: {code}'.format(code=r.status_code)
with: print('Status Code: {code}'.format(code=r.status_code))
Here is the command I ran which ...
- 213
3
votes
1
answer
3k
views
Shell command executed differently in a terminal and script
The following sequence of commands
ch=`echo "b_d" | sed 's/_/\\\\\\\\_/'`
echo $ch
when executed in a terminal or via source give an output
b\\_d
When ran as a scipt
sh script.sh
where the ...
- 943
2
votes
2
answers
220
views
shell variable test expansion problem
I have this code:
sed \
$( (( $compress == 1 )) && echo -n '-e /^RMTHOST/ s/$/, compress/' ) \
-e "s|\*\*jobname\*\*|$jobname|g" \
-e "s|\*\*hostname\*\*|$hostname|g" \
-e "s|\*\*hostport\*\*|...
- 185
4
votes
5
answers
1k
views
sed using double quotes with \!b leads to unknown command on back slash
I currently have a sed command that I want to act on the following type of text:
user:
ensure: 'present'
uid: '666'
gid: '100'
home: '/home/example'
comment: ''...
- 346
1
vote
1
answer
662
views
A variable with quotes as a sed command produces an error
I have this script:
num='[0-9]'
sedcmd='-e "s/${num}/as df/g"'
echo 123 | sed -r $sedcmd
The last line produces this:
sed: -e expression #1, char 1: unknown command: `"'
What did I miss?
- 441
0
votes
1
answer
640
views
Do I need to double quote a variable?
I am confused on when we double quote shell variables.
Specifically I am using the following sed replace command:
sed -i.tmp "/$MY_VAR/d" /foo/bar/file.txt
But I am not quoting $MY_VAR. Is this ...
- 10.2k
35
votes
4
answers
72k
views
find and replace with sed with slash in find and replace string
I want to change in file /var/www with /home/lokesh/www with sed command
sed -i 's///var//www///home//lokesh//www/g' lks.php
but this give error
sed: couldn't open file ww///home//lokesh//www/g: No ...
- 505
1
vote
1
answer
2k
views
The differences between sed #, %, / and |
I'm trying to replace a string in database. I found the possible solutions below. Using # or % works to me, but not for / and |. Can anyone explain why the first two works and what the differences are ...
- 123
2
votes
2
answers
1k
views
Parallelizing sed gives different output
Trying to parallelize a sed operation however, while the parallel version works, it gives back a wrong output.
The sed operation that I would like to parallelize (works)
sed 's/\s.*$// ; s/\(.*\)/\L\...
- 357
1
vote
2
answers
2k
views
Use sed command with variables
I have tried every possible solution available on the Stack Overflow and its related websites but did not find any solution. I spent a reasonable amount of time on this issue and am finally posting ...
- 177
3
votes
1
answer
2k
views
How to pass a list of variables into sed in a shell function
I want to append multiple variables to the end of a line that contains a certain string. Here is my function:
function () { sudo sed -i '/^STRING/ s/$/ '$@'/' FILE; }
However I got sed: -e ...
- 133
2
votes
2
answers
5k
views
How to escape quotes in shell within both usage of ssh and sudo?
In one word:
question and example could test locally:
sh -c "echo 'how to print single quote here'"
details:
I have a config like this:
upload_server = ('192.168.1.1', 10051)
now I need a shell ...
- 121
0
votes
1
answer
343
views
\1 in sed command not working under xonsh
I don't understand what I'm missing here:
$ echo 'testing' | sed -E 's/([a-z]*)ing/\1ing/g'
ing
I would expect the output to be testing again, since \1 should be test? That input seems to have been ...
- 1,995
5
votes
3
answers
7k
views
Problem with passing a variable to sed
I know that when passing a variable to sed, one should use double quote. So when I was using sed to display a line of a file given a line number:
sed '894!d' cloud.cpp
It works, but since I also ...
0
votes
1
answer
982
views
Termination issue with sed
In a sed script, I have the following line, which needs to be updated by sed:
opennic="nameserver 95.85.9.86\nnameserver 185.83.217.248\nnameserver 193.183.98.154\nnameserver 5.9.49.12"
The sed ...
- 2,593