I have used MediaInfo before to extract information in a shell script in CygWin.
#!/bin/bash
IFS=$'\n'; for file in $(ls *.mp3 /.mp3 ); do count="C:/Program Files/MediaInfo/MediaInfo.exe" $file | grep "Bit rate mode" | grep "Variable" | wc -l; if [ $count -gt 0 ]; then echo $file VBR; fi done
For some reason, it no longer outputs to stdout. It displays the data in a window. Is there some command line flag tp force stdout?
You use the Graphical Interface (GUI) version of MediaInfo, you need to use the Command Line Interface (CLI) version of MediaInfo.
See the different download options in the MediaInfo Windows download page.
Related
I have an nmap output looking like this
Nmap scan report for 10.90.108.82
Host is up (0.16s latency).
PORT STATE SERVICE
80/tcp open http
|_http-title: Did not follow redirect to https://10.90.108.82/view/login.html
I would like the output to be like
10.90.108.82 http-title: Did not follow redirect to https://10.90.108.82/view/login.html
How can it be done using grep or any other means?
You can use the following nmap.sh script like that:
<nmap_command> | ./nmap.sh
nmap.sh:
#!/usr/bin/env sh
var="$(cat /dev/stdin)"
file=$(mktemp)
echo "$var" > "$file"
ip_address=$(head -1 "$file" | rev | cut -d ' ' -f1 | rev)
last_line=$(tail -1 "$file" | sed -E "s,^\|_, ,")
printf "%s%s\n" "$ip_address" "$last_line"
rm "$file"
If you do not mind using a programming language, check out this code snippet with Python:
import nmapthon as nm
scanner = nm.NmapScanner('10.90.108.82', ports=[80], arguments='-sS -sV --script http-title')
scanner.run()
if '10.90.108.82' in scanner.scanned_hosts(): # Check if host responded
serv = scanner.service('10.90.108.82', 'tcp', 80)
if serv is not None: # Check if service was identified
print(serv['http-title'])
Do not forget to execute pip3 install nmapthon.
I am the author of the library, feel free to have a look here
Looks like you want an [nmap scan] output to be edited and displayed as you wish. Try bash scripting, code a bash script and run it.
Here's an link to a video where you might find an answer to your problem:
https://youtu.be/lZAoFs75_cs
Watch the video from the Time Stamp 1:27:17 where the creator briefly describes how to cut-short an output and display it as we wish.
If you require, I could code an bash script to execute an cut-shorted version of the output given by an nmap scan.
I want to ask how to find all the executable names of a package in ROS (Robot Operating System)? For example, find spawn_model in gazebo_ros package. When I inspect the package in my system, it just shows some .xml, .cmake files, without any executables. But I can run it, such as: rosrun gazebo_ros spawn_model.
Thank you!
An easy way to do this is to type: "rosrun name_of_package " and then press tab two times, it should show you all the executables built.
After looking in the bash autocompletion script for rosrun, it looks like the command catkin_find is used to find the location of the executables for a package, and the executables are filtered with a find command.
If you want to create a script to give you a list of the executables follow the instructions below:
Save the following script in a file called rospack-list-executables:
#!/bin/bash
if [[ $# -lt 1 ]]; then
echo "usage: $(basename $0) <pkg_name>"
echo ""
echo " To get a list of all package names use the command"
echo " 'rospack list-names'"
exit
fi
pkgname=${1}
pkgdir="$(catkin_find --first-only --without-underlays --libexec ${pkgname})"
if [[ -n "${pkgdir}" ]]; then
find -L "${pkgdir}" -executable -type f ! -regex ".*/[.].*" ! -regex ".*${pkgdir}\/build\/.*" -print0 | tr '\000' '\n' | sed -e "s/.*\/\(.*\)/\1/g" | sort
else
echo "Cannot find executables for package '${pkgname}'." >&2
exit 1
fi
Then make the rospack-list-executables script executable (chmod +x rospack-list-executables) and place it in a directory that can be found in your $PATH environment variable.
Run the script:
$ rospack-list-executables gazebo_ros
debug
gazebo
gdbrun
gzclient
gzserver
libcommon.sh
perf
spawn_model
You should get the same result that you get when you type the rosrun <pkgname> command and press Tab:
$ rosrun gazebo_ros
debug gazebo gdbrun gzclient gzserver libcommon.sh perf spawn_model
You can check the executables for all packages with the following bash code:
rospack list-names | while read pkgname; do
echo "Executables for package '${pkgname}':";
rospack-list-executables $pkgname; echo "";
done
To enable package autocompletion for your newly created command, type the following:
complete -F _roscomplete rospack-list-executables
If you do not want to have to type the complete command every time you login, you can append it to your .bashrc file:
echo "complete -F _roscomplete rospack-list-executables" >> ~/.bashrc
Now when you type the command rospack-list-executables and press the Tab key, you should get a list of all the available packages to choose from.
catkin_find --first-only --without-underlays --libexec <your package name>)
should give you the folder where the executables are
I've created a small function to allow me to grep through my command history on zsh. The command history 1 will display the entire command history. And running history 1 | egrep ls shows just those command containing ls.
So my function looks like this:
h() {
if [ -z "$*" ]
then
history 1
else
history 1 | egrep "$#"
fi
}
Unfortunately this only results in the following error message:
$ h ls
egrep: ls: No such file or directory
I'm at a loss as to what is wrong in my script. I've trie both grep and egrep to no avail.
What is the full path of grep or egrep?
It's possible that it's running in an alternate shell which has a different PATH set. Try using an explicit /usr/bin/grep or /usr/bin/egrep and see if that fixes anything.
Create a file history.zsh (slightly changed from the original):
#!/bin/zsh
h() {
if [ -z "$*" ]
then
history
else
history | fgrep "$*"
fi
}
Now source this file (so "h" will be refreshed):
. history.zsh
And call the new function:
$ h ls
30 h ls
31 ls
I've abandoned the function. Further reading on the subject of zsh history lead me to this very elegant solution that meets my needs. https://coderwall.com/p/jpj_6q
In a nutshell you add this to your .zshrc:
autoload -U up-line-or-beginning-search
autoload -U down-line-or-beginning-searc
zle -N up-line-or-beginning-search
zle -N down-line-or-beginning-search
bindkey "^[[A" up-line-or-beginning-search # Up
bindkey "^[[B" down-line-or-beginning-search # Down
Now your history can be searched by entering a partial term and using the up or down arrow keys to walk through the matches from your history file.
I am in the process of creating a script that lists all files opened via lsof output. I would like to checksum specific files and ignore directories from that output but am at a loss to do so EFFECTIVELY. For example: (I'm using FreeBSD btw)
lsof | awk '/\//{print $9}' | sort -u | head -n 5
prints:
/
/bin/sleep
/dev/bpf
What I'd like to do is: FROM that output, ignore any directories and perform an md5 on FILES (not directories).
Any pointers?
Give a try to following perl command:
lsof | perl -MDigest::MD5=md5_hex -ane '
$f = $F[ $#F ];
-f $f and printf qq|%s %s\n|, $f, md5_hex( $f )
'
It filters lsof output to plain files (-f). Take a look into perlfunc to change it to add different kind of files.
It outputs each file and its md5 separated by a space character. An example in my system is like:
/usr/lib/libm-2.17.so a2d3b2de9a1f59fb99427714fefb49ca
/usr/lib/libdl-2.17.so d74d8ac16c2d13128964353d4be7061a
/usr/lib/libnsl-2.17.so 34b6909ec60c337c21b044642b9baa3d
/usr/lib/ld-2.17.so 3d0e7b5b5c4e59c5c4b6a858cc79fcf1
/usr/sbin/lsof b9b8fbc8f296e47969713f6369d97c0d
/usr/lib/locale/locale-archive 3ea56273193198a718b9a5de33d553db
/usr/lib/libc-2.17.so ba51eeb4025b7f5d7f400f1968f4b5f9
/usr/lib/ld-2.17.so 3d0e7b5b5c4e59c5c4b6a858cc79fcf1
...
I am trying to write a small shell script to find out the signed and unsigned jars in particular directory. While the script works fine until 4-5 jars, it starts showing unpredictable results if my directory has more jars ( currntly about 25 jars). I am not sure but a possible reason for this might be related to buffering of STDIN/STDOUT. I tried to find a resolution for this in related posts but could not get a clear answer.
Here goes my script: ( it takes JAVA_HOME as an argument ):
#! /bin/bash
JV_HOME=$1
for i in `ls *.jar`
do
echo "scanning $i ..."
FILE=$i
$JV_HOME/bin/jarsigner -verify -verbose -certs $FILE | grep "jar verified" ;
if [ $? -eq 0 ]; then
echo "\n$FILE is code-signed\n"
else
echo "\n$FILE is unsigned/unverified..\n"
fi
done
For some of the jars, it says the jar to be unsigned, when they are actually signed when checked individually with the following command:
$JAVA_HOME/bin/jarsigner -verify -verbose -certs
What could possibly be wrong with the above script?
Thanks in advance,
Pabi