I have a file with the below data, i would like to remove the end blank lines with no data. I used the below commands but could not able to succeed, could you please shed some light.
Commands Used:
sed '/^$/d' input.txt > output.txt
grep -v '^$' input.txt > output.txt
input.txt file... (5 Replies)
I have a .xml file, where i need some output. The xml file is like:
Code:
<?******?></ddddd><sssss>234</dfdffsdf><sdhjh>534</dfdfa>.........
/Code
I need the output like:
code
234
534
.
.
.
/code
How can i do it? (5 Replies)
Hi,
I got a log file and I want to grep out a list of unwanted line which are IP's.
Basiclly I want everything ecxept the ip's from my list.
If I do a
while read line
do
grep -v $ip_from_my_list logfile
done <ip_list
it just grep's one IP at a time and repeats. :(
Thanks for... (3 Replies)
I am running a grep query for searching a pattern, and the output is quite huge. I want only the last 200 lines to be displayed, and I am not sure if tail will do the trick (can tail read from std in/out instead of files?).
Please help me out. (1 Reply)
Ok, i have a .kml file that that i want to trim down and get rid of the rubbish from. its formatted like so:
<Placemark>
<name><!]></name>
<description><!</b><br/>Frequency: <b>2437</b><br/>Timestamp: <b>1304892397000</b><br/>Date: <b>2011-05-08... (11 Replies)
Thanks everyone. I got that problem solved.
I require one more help here. (Yes, UNIX definitely seems to be fun and useful, and I WILL eventually learn it for myself. But I am now on a different project and don't really have time to go through all the basics. So, I will really appreciate some... (6 Replies)
Hi.
I need to filter lines based upon matches in multiple tab-separated columns. For all matching occurrences in column 1, check the corresponding column 4. IF all column 4 entries are identical, discard all lines. If even one entry in column 4 is different, then keep all lines.
How can I... (5 Replies)
Hello,
I need a little help with the following:
I'm using AWK to read input from a comma-seperated value file, and only printing certain fields like so:
awk -F "," '{print $1,$3,$6}' /list.csv | tail -1
Which outputs the following:
server1 APPID OS
I run into a problem... (8 Replies)
I have a file contains data with non-printing characters. i have used cat -v filename to display whole data with non-printing characters also.
However, i need lines with non-printing characters into seperate file. My file is huge and looks like i have to manully find lines using cat -v filename |... (3 Replies)
Discussion started by: JSKOBS
3 Replies
LEARN ABOUT DEBIAN
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)