I have a lot of string texts which normally should only contain a single float so that I can put this float into a variable.
This stings are generated by a grep command out of a large html file.
sometimes a value that I want to grep is found more than once, so that the resulting sting contains the value more than once, too.
Example:
"14.5 14.5"
So my idea was to use the sed command to delete everything after the first found " ". But I am not able to set the parameters for that sed command right.
I hope someone can help me with that...
Thanks,
Stefan
---------- Post updated at 01:14 PM ---------- Previous update was at 01:03 PM ----------
never mind. The Secound after I wrote my question I found the Answer myself:
Last edited by rbatte1; 01-12-2018 at 09:49 AM..
Reason: Added CODE tags
I could really use some help with this issue. I'm having a lot of trouble getting my sed command to delete only the lines from my file that end with _;
I'm also supposed to carry the leading 'c' down to the next line. The commands I've tried either delete everything or nothing at all. Any help... (12 Replies)
Sed: Delete lines in files that contain other than 'a-z' ,'0-9', '.' and '-'
Hello,
I'm looking for a shell command or maybe a small php loop to delete lines in files.txt (in the same directory) that contain character other then 'a-z' ,'0-9', '.' and '-'
All line that have characters like... (4 Replies)
im a new student in programming and im stuck on this question so please please HELP ME. thanks.
the question is this:
enter a command to delete all files that have filenames starting with labtest, except labtest itself (delete all files startign with 'labtest' followed by one or more... (2 Replies)
I wrote a script to delete files which are older than "x" days, if the size of the directory is greater than "y"
#!/bin/bash
du -hs $1
while read SIZE ENTRY
do
if ;
then
find $1 -mtime +$2 -exec rm -f {} \;
echo "Files older than $2 days deleted"
else
echo "free Space available"... (4 Replies)
logs:
"/home/abc/public_html/index.php"
"/home/abc/public_html/index.php"
"/home/xyz/public_html/index.php"
"/home/xyz/public_html/index.php"
"/home/xyz/public_html/index.php"
how to use "cut" or "awk" or "sed" to get the following result:
abc
abc
xyz
xyz
xyz (8 Replies)
Hi Experts,
Good day,
I am looking for the 6th fields 4th dot (.) to convert into a space in the output.
file:
tcp 0 0 10.80.110.100 2900 1 10.40.104.6.42769 ESTABLISHED
tcp 0 0 10.80.110.100 2900 1 10.40.103.7.38620 ESTABLISHED
tcp 0 ... (11 Replies)
Dear Ladies & Gents,
I have a requirement to delete all the log files in /var/log/test directory that are older than 10 days and their first line begin with "MSH" or "<?xml" or "FHS". I've put together the following BASH script, but it's erroring out:
for filename in $(find /var/log/test... (2 Replies)
So I'm on an AIX machine.
And sed is not applying /d "delete line" option when I also include match word options \< and \>
examples...
echo cat | sed '/\<cat\>/d'will return cat for some reason
echo cat | sed "/\<cat\>/d"will also still return cat.
Of course i can just run
echo cat... (9 Replies)
Discussion started by: escooter87
9 Replies
LEARN ABOUT LINUX
shtool-subst
SHTOOL-SUBST.TMP(1) GNU Portable Shell Tool SHTOOL-SUBST.TMP(1)NAME
shtool-subst - GNU shtool sed(1) substitution operations
SYNOPSIS
shtool subst [-v|--verbose] [-t|--trace] [-n|--nop] [-w|--warning] [-q|--quiet] [-s|--stealth] [-i|--interactive] [-b|--backup ext]
[-e|--exec cmd] [-f|--file cmd-file] [file] [file ...]
DESCRIPTION
This command applies one or more sed(1) substitution operations to stdin or any number of files.
OPTIONS
The following command line options are available.
-v, --verbose
Display some processing information.
-t, --trace
Enable the output of the essential shell commands which are executed.
-n, --nop
No operation mode. Actual execution of the essential shell commands which would be executed is suppressed.
-w, --warning
Show warning on substitution operation resulting in no content change on every file. The default is to show a warning on substitution
operations resulted in no content change on all files.
-q, --quiet
Suppress warning on substitution operation resulting in no content change.
-s, --stealth
Stealth operation. Preserve timestamp on file.
-i, --interactive
Enter interactive mode where the user has to approve each operation.
-b, --backup ext
Preserve backup of original file using file name extension ext. Default is to overwrite the original file.
-e, --exec cmd
Specify sed(1) command directly.
-f, --file cmd-file
Read sed(1) command from file.
EXAMPLE
# shell script
shtool subst -i -e 's;(c) ([0-9]*)-2000;(c) 1-2001;' *.[ch]
# RPM spec-file
%install
shtool subst -v -n
-e 's;^(prefix=).*;1 $RPM_BUILD_ROOT%{_prefix};g'
-e 's;^(sysconfdir=).*;1 $RPM_BUILD_ROOT%{_prefix}/etc;g'
`find . -name Makefile -print`
make install
HISTORY
The GNU shtool subst command was originally written by Ralf S. Engelschall <rse@engelschall.com> in 2001 for GNU shtool. It was prompted
by the need to have a uniform and convenient patching frontend to sed(1) operations in the OpenPKG package specifications.
SEE ALSO shtool(1), sed(1).
18-Jul-2008 shtool 2.0.8 SHTOOL-SUBST.TMP(1)