I've these path:
Code:
xxx/yyy/zzz/0908/aaa/a.txt
xxx/yyy/zzz/0909/aaa/a.txt
xxx/yyy/zzz/0910/aaa/a.txt
fff/ggg/hhh/iii/jjj/0911/aaa/a.txt
fff/ggg/hhh/kkk/0912/aaa/a.txt
and I would like to extract only the number, so that I've get the result
Code:
0908
0909
0910
0911
0911
How can I do it in bash?
I have to extract last number from filename.
ex- my file name is a10b8c1000
so i want to extract 1000 from it.
i tried using sed
sed 's/[a-z][0-9]*[a-z][0-9]*[a-z]//g' a10b8c1000
but sed looks for content inside file.
Im writing a script that extracts part of the path name:I drop a file in terminal and set the directory name of the file to x using dirname $0note: ( directory is different every time since not all files are from the same location)
ex.
x="/home/Downloads/yesterday/photo/.../image.png" /image.png
/.../ means I dont know the name of folders between but I know the path name always starts
[code]...
Using normal bash tools (ie, built-ins or commonly-available command-line tools), is it possible, and how to extract/save attachments on emails?
For example, say I have a nightly report which arrives via email but is a zip archive of several log files. I want to save all those zips into a backup directory. How would I accomplish that?
as a result of a find command, i have
852065 72: /bin/gunzip
852065 72: /bin/gzip
852065 72: /bin/zcat
(the first column is inode number and the second is size if you're curious)
I want to be able to format it in a way such that:
852065 72:
/bin/gunzip
/bin/gzip
/bin/zcat
I know I can get the bottom half using awk- but I can't figure out how to extract the first set of numbers and get them to appear only once
Does anyone know how to get the path with a inode number by C programming?
Or can I get the absolute path without giving a "path" but a inode number by C?
like this: get_path(unsigned inode);
not such this function: getcwd(".", xxx);
taowuwen@gmail.com
kernel 2.6.21.5, slackware 12.0
GNU bash 3.1.17
Code:
As you can see, /usr/local/bin is in the path. However, bash does not look for nasm in /usr/local/bin.
If I am root, things go well:
Code:
I just want to know is it possible to extract a single mail from the mail path i.e. /var/mail/root.
for ex. i am having this mail in /var/mail/root.
From root@localhost.localdomain Thu Mar 10 21:47:47 2011
Return-Path: <root@localhost.localdomain>
Received: from localhost.localdomain (localhost.localdomain [127.0.0.1])
by localhost.localdomain (8.13.8/8.13.8) with ESMTP id p2AGHlx4004190
for <root@localhost.localdomain>; Thu, 10 Mar 2011 21:47:47 +0530
[Code]....
how to extract only this mail from /var/mail/root
I'm trying to get an output of a file in numeric order. Basically I need the starting number and the ending number in sed this into anther file. The test2.lis file I'm just awk'ing for the first row and if its out of order put it in order so I can grab the first and last numbers. I'm sure I can do this all in an array. The first sed command gets rid of blank lines and outputs it to a file. Then I head and tail for the first and last number then I want to sed those numbers into a file that exsist.
[code]...
The error I get is:
sed: -e expression #1, char 24: unterminated `s' command.
Take this block of pseudocode:
Code:
for i in $list; do
<some statements>
if i > 5
exit
<more statements>
done
That is, want to terminate the iteration just after 5 iterations. A first problem, is that list is a string and not a number. It's all I can say, except to keep reading bash monster manual.
I would like to know how do I print the line # in a script. My requirement is, I have a script which is about ~5000 lines long. If there are any errors happen I just exit. And I would like to add the line # of the script where the error happened.
View 3 Replies View RelatedI'm trying to extract the sender id from a fairly large number of files and am having trouble assigning variables from a file. Here is what I have so far, (which is fairly kludgy I know, but it's been some years since I've done any scripting or programming, and I find that I have lost the knack to a large degree).
[Code]...
I can not for the life of me determine how to get the monitor serial number / manufacture date using Extended Display Identification Data (EDID). Does anyone know? None of the following provide this info:
monitor-get-edid
monitor-edid --v
monitor-edid --MonitorsDB
monitor-get-edid | monitor-parse-edid
dmidecode -q
I have a file in the form below, and wish to replace each start line with an increasing number. So instead of:
Code:
start
content content
start
content content
start
[Code]....
After several searches and a bit of messing around, it's clear I'm missing something, so was wondering if anyone could offer any insight?
I found the following function in /etc/profile file.
[Code]...
1. I dont undestand what "if ! echo $PATH | /bin/grep -qE "(^|:)$1($|:)"" this if statement actually comapres??
2. Also what is the difference between PATH=$PATH:$1 & PATH=$1:$PATH
The situation is the following:I download everyday several files from a website which are always password-protected with one out of 4 or 5 different passwords.I wanted to write a bash script to extract them automatically by trying with the different passwords.The files are mostly 7z.Can anbody lend me a hand?The starting point could be sth. like:
Code:
#!/bin/bash -x
FILE=$1
[code]....
I have a bash variable where the content looks like this where ;f1; and ;f2; are delimiters:
;f1;field1value1;f2;field2 value1 ;f1;field1value2;f2;field2 value2 ;f1;field1value3;f2;field2 value3
So what I need is to extract and put into variables each combination of f1 and f2 in a loop to something like that:
#first pass of the loop I need:
f1=field1value1
f2=field2 value1
#second pass of the loop I need:
f1=field1value2
f2=field2 value2
# third pass of the loop I need:
f1=field1value3
f2=field2 value3
I have some programs compiled into /opt/programname, and I would like to be able to execute them without typing the full path; I've tried with PATH=$PATH:/opt/*/bin, but with no luck;
View 4 Replies View RelatedI am trying to execute executable files in bash without adding ./ I know there must be an alias to add in .bashrc, that must be something like alias PATH=$PATH:. But this seems not to be working.
View 1 Replies View RelatedWe have a custom app that runs on boot on some older hardware running DSL linux, and their startup manager was quite simple. We purchased some newer Asus eeebox's which run xandros and things are quite stable and run nice with 1 exception.The application only runs from the root (/) location. This box auto logs in as 'user' and there is a /home/user/.kde/Autostart folder where you can stick scripts to run at boot. So I have a start.sh script, and with little bash programming tried things such as;
sudo cd /
sudo /startapp.pl
but the errors start spewing with the basic;can't find data/xyz as it's looking in the local.I thought there was a basic cwd (change working directory) but everything I try just forces the run from that location.Any ideas or suggestions are appreciated, but things like can you change the code, etc. can't be done, so it must be a programming thing. The only other thought I had but not sure, can you do a cronjob with @boot or something, that when the box starts, it can run this job as root and fire off?
I am programming in bash and really stuck finding directory names. I have a script to find all the .php files on my / partition which will return the whole path. Is there a way to print directory hierarchy with all those values leaving out the forward slashes.
View 10 Replies View RelatedHow can i get bc to subtract negative numbers?
View 10 Replies View RelatedI use this command:
Code:
find ./ -atime +360
to figure out the files that haven't been accessed since 360 days. The command above will return results like this:
Code:
/uploads/2010/02/some-file-name.ext
/uploads/2009/08/another-file-name.ext
... etc
I'm taking here about tins of directories, thousands of files. I'm looking to find a command that makes me able to move the results above to another path, and to create that path once it doesn't exist like below:
Code:
mv /uploads/2010/02/some-file-name.ext /old-files/uploads/2010/02/some-file-name.ext
But I want the executed command to create this path
Code:
/old-files/uploads/2010/02/
If it doesn't exist.
I have a program that takes a relative path as input appends it to a some path string to get the actual path.
Now all I can input is the relative path. So if I want to go one level above my input will be ../mypath.
If I know the depth of the path used internally, I can use .. as many times to go to the root directory and then give the absolute path. But suppose I do not know the depth of the directory, can I construct a relative path string such that it considers it as a relative path. One way could be to have enough .. in the path string so that I can force an absolute path for some maximum depth of path.
Is there some path string syntax that I am not aware of but can achieve this?
Experimenting with shell variables, accidentally deleted the path variable how could I return to the original path value. What kinds of problems will I have if I don't have a path variable.
View 3 Replies View RelatedI'm trying to make a script to make it quicker to encode videos.
Code:
#!/bin/bash
echo "Type the path of the video file"
[code]....
I am trying to create a file, that has a variable assigned to it, in another directory. For some reason when I run the script it creates the file only in my pwd and I cannot for the life of me figure out why.My pwd at the moment is Desktop but it does not matter as I have tried from elsewhere. I have tried the touch command in the following ways (some will be obviously incorrect but I was desperate)and many more as well as the original format listed.
View 1 Replies View RelatedI want to make a very simple bash script to run a command for a user-specified number of seconds and then kill it. The purpose is to limit the amount of time the program runs.Example in pusedocode:
Code:
#!/bin/bash
#$1 is the user input number of seconds
[code]...
I would like to know how do I print the line # in a script. My requirement is, I have a script which is about ~5000 lines long. If there are any errors happen I just exit. And I would like to add the line # of the script where the error happened.
View 2 Replies View RelatedIs there a way to count the number of errors- an exit variable $? from one function?
The output from the exit variable (either erroneous or correct (1) or (0)) is it possible to add the erroneous one ups?