having trouble with a sed command.
I'm looking to find a line in a file and replace it.
In my script I've used this command without issue; (I use it to set variables)
sed -i '/job=empty/c\job='$job'' $sd/pingcheck-mon-$job.sh
The line I want to replace looks like this,
bash home/user/pingcheck/pingcheck-jobs/job1/pingcheck-mon-job1.sh
This is the command I can't get to run:
sed -i '/bash '$sd'/pingcheck-mon-'$job'.sh/c\jobslot=empty' $wd/pingcheck-worker.sh
Error I get:
sed: -e expression #1, char 9: extra characters after command
Could someone please tell me where I'm going wrong?
Thanks in advance!
Related
I am having a issue where i am trying to substitute a variable in sed command while executing it in TCL shell.
Below is what i tried.
set variable 5
exec sed "s/test1\$/test1;test1 $variable/g" file1 > file2
I see below error.
Error: sed: -e expression #1, char 75: unknown option to `s'
Use error_info for more info. (CMD-013)
I have tried some links on stack overflow but that did not help.
Using a Variable in a sed command called in Tcl Script
The general approach is correct. Try this1:
▶ expect
expect1.1> set var /bin/sh
/bin/sh
expect1.2> exec sed -n "s%:$var\$%:/bin/bash%p" /etc/passwd
root:*:0:0:System Administrator:/var/root:/bin/bash
expect1.3> exec sed -n "s%:$var\$%:/bin/bash%p" /etc/passwd > /tmp/log
Analysing your error message:
Error: sed: -e expression #1, char 75: unknown option to `s'
Note that sed received at least 75 characters- far more than in your code example. Does that help you to figure out what went wrong? If not, update with the actual code you tried.
1 Noting that expect just adds some extensions onto TCL, and I don't have TCL on my laptop.
I have a textfile and would like to save all lines that are ending with .m2 or .M2. I tried several ways including this here
D:\filetype\core\sed.exe -n -e "s/^\(.*\)\.M2//" D:\filetype\listfile\test.txt > D:\filetype\listfile\test2.txt
But as result i only get a emtpy textfile, so i guess something is wrong with my code.
The other way was
D:\filetype\core\sed.exe -n -e "^/\(.*)\/.M2\/" D:\filetype\listfile\test.txt > D:\filetype\listfile\test2.txt
But in this case i wasn't able to locate the source of the error
unknown command: `^'
Thanks if someone can see my fault.
You can use below sed command:
sed -n -e '/\.[mM]2$/p' <file_name>
This will print all the lines which have .m2 or .M2 at the end
Now comming to issues with your commands. Your first command does:
sed -n -e "s/^\(.*\)\.M2//"
which is a search and replace command indiacated by s in the command. Syntax for this command is s/search_text/replace_text/. Now if you are look at your command carefully, you are searching for something and replacing it with nothing - as indicated by last // in your command - where replace_text is missing.
Your second command does
sed -n -e "^/\(.*)\/.M2\/"
which is incorrect syntax. General syntax of a sed command is :
sed -e 'line_range command'
where line range - which is optional - can be line numbers like1, 5 , 2-5, or a regular expression like /[gG]/, /[gG][iIuU]rl/.
If line_range is missing, the first letter in sed command should be a command. In your case: line_range is missing - which is fine syntax wise -, however the first letter is ^ - which is not a sed command - because of which you are getting syntax error.
The command that I suggested is
sed -n -e '/\.[mM]2$/p'
Here, line_range is the regular expression /\.[mM]2$/ - which says "any line which has .m2 or .M2 at the end", and command is p, which is the letter for print command.
Sed is mostly used to transform text. Why not use grep instead?
grep -i "\.m2$"
This will match case insensitively (-i) any line ending with .m2.
I am trying to execute sed command inside TCL script . Basically i wanted to remove all empty lines from the input file before reading the file using TCL. so i tried following in my script
exec sed -i '/^\s*$/d' .tmp.PG_Ring
set fid [open ".tmp.PG_Ring" r]
But the script is dumping following Error .
sed: -e expression #1, char 1: unknown command: `''
while executing
"exec sed -i '/^\s*$/d' .tmp.PG_Ring"
(file "pg_ring.tcl" line 1)
could you please provide me work around for this & help me with best way to do this?
That won't work, as single quotes have no special meaning to Tcl at all. Tcl uses braces to mean the same sort of thing (except they nest nicely), so instead you can use this:.
exec sed -i {/^\s*$/d} .tmp.PG_Ring
PING=$(ping -c 2 google.com)
sed -i.bak "s/test:/&\n$PING/g" test.txt
Im trying to output the variable PING on a newline after test: in the test.txt file.
But i keep receiving this error.
sed: -e expression #1, char 64: unterminated `s' command
I don't know where I'm going wrong any help is much appreciated.
you can write sed scripts like you write bash scripts, and newlines are command separators. you need a line continuation.
untested:
sed "s/test/&\
$PING/g" file
Style advice: get out of the habit of using UPPERCASE variable names. One day you'll use PATH and break your script.
So, I have looked around for an answer to this, and indeed I have found some, but none seem to work...
I have a folder full of bash scripts that I need to modify. specifically, I need to replace the line
INPUT=/data/scratch02/mpgussert/HAWC-30/${RUN}_reco
with
INPUT=/data/hawc01/hawcroot/data/hawc/reconstructed/quesadilla/${RUN}
I have tried this
perl -w -i -p -e "s'INPUT=/data/scratch02/mpgussert/HAWC-30/${RUN}_reco'INPUT=/data/hawc01/hawcroot/data/hawc/reconstructed/quesadilla/${RUN}'g" *.sh
which executes without error, but does not find and replace the desired text. From my understanding, using ' to deliminate the regex should search without special character replacement. Is that correct? If so, any ideas why it fails?
I have also tried
perl -w -i -p -e "s/INPUT=\/data\/scratch02\/mpgussert\/HAWC-30\/\$\{RUN\}_reco/INPUT=\/data\/hawc01\/hawcroot\/data\/hawc\/reconstructed\/quesadilla\/\$\{RUN\}/g" *.sh
the backslash should ignore special character replacement, but this returns the following error.
Backslash found where operator expected at -e line 1, near "RUN\"
syntax error at -e line 1, near "RUN\"
Execution of -e aborted due to compilation errors.
So it's searching for RUN\, which is not what I want... Any thoughts? I would appreciate any help you can give.
Thanks!
You want the pattern to be ...\$\{RUN\}..., but that's not what you're passing:
$ echo "...\$\{RUN\}..."
...$\{RUN\}...
You either need do more escaping, or switch to single quotes.
$ echo '...\$\{RUN\}...'
...\$\{RUN\}...
All together:
perl -i -wpe'
s{INPUT=/data/scratch02/mpgussert/HAWC-30/\$\{RUN\}_reco}
{INPUT=/data/hawc01/hawcroot/data/hawc/reconstructed/quesadilla/\${RUN}}g
' *.sh