I am using openSUSE 10.3.When I install software from tarball then to record time required I send output of date to beg.txt(when installation begins) and end.txt (when installation finishes).How can I append output of date to a file so I don't need two files?
View 4 RepliesWhile making a shell ,there is the following problem Im facing:
I am expecting the user to enter commands in the following format :
I am to separate these and the output of ls -l should be given as input to grep and the output of both to more.
But I am allowed (by our instructor) to use dup/dup2 or any other command(but not pipe or tees).
How to connect the file descriptors after successful execution of each command?
is it possible to log the command output's history that are previously printed messages in the terminal to a file? that is the first command output when i first opened terminal through the last command.
View 5 Replies View RelatedTried to make a text file and write something in it (a link) quickly as possible, because I was in a rush. So did this:
[Code]...
Now, looking briefly at the output, can't get what's happened lol! I mean, it's html for crying out loud. Not 'scripting' n all. What do you guys reckon has happened?
I moved from a Linux environment from one company to another and one annoying difference came out:When I used to run an application in a terminal (no GUI), the transcript lines were presented one the window - when the window was full then the scrolling of the lines would continue only if one hit the space bar to proceed (of course waiting to user input did not stop the run).
In the new environment the behavior is different - transcript lines keep going on and on so I need to scroll up - and moreover each page-up command is cancelled by the new lines appearing.perhaps this is also reproduce with other Linux commands , say "find" or "ls".
I want to scan a particular directory recursively and run a particular command with each file as input. For this I am using "find /dir/path". I dont want to write any long script containing loop on the output of "find". I want a single command which will allow me to run a command on each file of the "find" command output.
View 3 Replies View RelatedI am creating a script to sync my important documents between two system. I want my script to generate a log file for the last action. can you suggest me a way to achieve this.Question: If I execute the rsync command with -v flag, it will print a lot of messages on the console. Is there any way. So, I can redirect these logs to a file?
View 4 Replies View RelatedThis seems so simple when doing it from command line but I'm not able to accomplish it inside a script. I am trying to put output of following command into a text file:
CMD= mysql -uroot -psecret -e 'SHOW SLAVE STATUS G;'
FIL=~/replication-`date +%F`.txt
MAILTEXT=~/mailtext.txt
touch $FIL
$CMD > $FIL
Where FIL is a variable that contains path of the file to which to output command. I am running this command in a shell script from where I want to email contents of $FIL as attachment using mutt. But I am always getting 0 byte file. Also if I examine in directory the file is of 0 byte length.
For example I want a file to be processed by sed, and then overwrite the file with sed's output. I would try this:
Code:
sed '<regex goes here>' myfile > myfile
But it doesn't work as expected, instead it empties the file (I am thinking that as the first byte comes out of sed, it overwrites the whole file and sed has nothing more to do). How can I make this work?
I used the following command
Code:
file /usr/bin/mawk
Output is
[code]...
I am trying to grep multiple numbers from file, grep does have the -f option for that.
Code: grep -f <`seq 500 520` /etc/passwd I know this could be done with
Code: for i in `seq 500 520`; do grep "$i" /etc/passwd; done But my question is fare more behind this example. It is possible to redirect one command output which will be treat as a content of file for another command ?
I have a existing zipped file , I want to use gzip command to append some files to it , I tried man gzip but can't find the key word "append" , can advise how can I do it ?
View 1 Replies View RelatedI want to run gsettings list-schemas (which return a list of about 100 names separated by spaces)and somehow direct each name one at a time as the input to this command:gsettings list-recursivelyI've tried it with awk, and standard | piping and also as a string variable strvar=$(gsettings list-schemas) and using the $strvar as the input butam missing something in between I'm sure like for - while or proper syntax of awk etc
View 3 Replies View RelatedI want to use the output of a previous command as a parameter to another command. For example: to know where "nice" is stored i typed: which nice output: /usr/bin/nice now the second command i typed is: ls -l /usr/bin/nice Is there a way to have a single command like: ls -l which nice ?
View 4 Replies View RelatedI am trying to watch a command and try to log it into a file. I tried
watch -t -n 10 "(date '+TIME:%H:%M:%S'
; ps aux | grep "pattern" | wc -l)" >>
logfile
and am expecting a result like
TIME: 10:32:30 12
TIME: 10:32:40 18
TIME: 10:32:50 2
to be stored in logfile. However, when the logfile has unprintable characters in in. How do I get this kind of output from the command li
How to output to a text file the compound command:
Code:
find -type f -print0 | xargs -0 grep -l "desired text"
I have not been able to find the answer.
[code]...
I've created a script to test network speeds but I've run in to a little problem. The command outputs this:
Code:
Client connecting to 192.168.111.230, UDP port 5001
Sending 1470 byte datagrams
[code]...
The output of my fdisk command is as follows :-zodiac@gml-admin:~$ sudo fdisk -l[sudo] password for zodiac: Disk /dev/sda: 160.0 GB, 160041885696 bytes255 heads, 63sectors/track, 19457 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xe30ce30c
Device Boot Start End Blocks Id System
/dev/sda1 * 1 1958 15727603+ 7 HPFS/NTFS
/dev/sda2 1959 4752 22437838 f W95 Ext'd (LBA)
[code]...
I am writing a script in which I am using AWK to append to a line in a file and save the file. The command I am using is:
Code:
awk '{s=$0; if ( NR==4 ){s=s ":/usr/java/jdk1.6.0_19/bin" } print s;}' $appName > $appName.new
[code]...
I'm looking for a way to have the access log for my nginx install scroll up the terminal as lines are added to the log. I think I need a command like cat access.log | diff but I'm not sure exactly what it should be.
View 1 Replies View RelatedNow, I use Fedora Core (version 8) with core linux OS 2.6
I have some file data with size about 2G and I want to burn (write) this file to DVD rewrite.
I know linux OS can install software to burn data to DVD, but I don't have permission to install more software. I only use command line over Terminal (Gnome Terminal).
When ever i am giving the command service nfs restart in fedora14 iam getting the following:
And when typing the command service portmap restart in fedora 14 i am getting the following:
When i tried this in redhat and centos it was working in my class room but when i am trying it in real time it is not working so what does it mean and how to resolve the issue.
I am using gtk to program GUI. How can I show the output of shell command into a textbox, ex ps -efc command ?
View 3 Replies View RelatedI download some movies those are with 'mkv' , but couldn't be played, I tried other players , like mplayer , dragon , xine, even swich OS to windows , didn't work . not all of those files , but some of them. one of them named 'the.other.man', 2GB.I opened a terminal and executed "file the.other.man.mkv "utput is "data", and command 'strings the.other.man.mkv", output like as follow:
T5}.
S!e
I|
[code]...
I have the following command that works Code: ssh root{at}IPADDRESS 'vim-cmd vmsvc/power.getstate 64 | grep Powered | awk "{ print $2}"' Which outputs the following text:- Powered on I would like to Append some text so the output is:- Ubuntu Server: Powered on Every different variation that I have tried ends up in an unexpected token.
View 1 Replies View RelatedIs there a vim command or sequence of commands that will append the current line into the clipboard? Given the example below:
4
5
3
1
2
Lets say I wanted to cut 3, 4, 5 (in that order) then paste them below 2 so that the numbers are in order?
in the middle of script, i need to send the output of (send command on line 8) to a file
#!/usr/bin/expect
spawn telnet 172.20.64.133
expect "ENTER USERNAM <"
[cod]....
i treid the below on line 8 :
1- send "show command;
" > logfile.txt : gives an error extra character after the "
2- logsave logfile.txt 'send "show command;
" ': error invalid command
3- i simply tried to send the output of the whole script to file logsave /home/logfile ./script : seems that logsave work under root only
4- ./script > logfile : the problem with this is that the output of echo or (read "enter your id") command will not be displayed on the screen (actually nothing will be displayed, i have to open the log file to see the output). is there any way to save the log of the "send" ? or to save the log of the complete script without hiding the output on the screen?
I want to run a linux command with apache through web browser and that's is not working. and it's working properly when I execute this command through terminal, where is the problem?
NOTE: apache have the privileges to execute the command
how to pass something more than a one-command startup for gnome-terminal. I will give an example of what I'm trying to do here:
Code:
#! /bin/bash
#
#TODO write this for gnome and xterm
[code]....
This same error occurs if the gnome-terminal line is changed to
Code:
gnome-terminal -e mcTerm
Is there any way to pass more than one command on to gnome-terminal? I have tried various single and double quoting senarios and in a final attempt, I abstracted to an exported function all to no avail. Perhaps even though gnome-term is better at many things than xterm, xterm trumps it in this instance.
I am trying to learn how to pass more than a one-command startup for gnome-terminal.
I will give an example of what I'm trying to do here:
Code:
#! /bin/bash
#
#TODO write this for gnome and xterm
USAGE="
${0##*/} [-x] [-g]
code....
However, running with the -g option to invoke gnome-terminal, I get a "There was an error creating the child process for this terminal" error.
This same error occurs if the gnome-terminal line is changed to
Code:
gnome-terminal -e mcTerm
Is there any way to pass more than one command on to gnome-terminal? I have tried various single and double quoting senarios and in a final attempt, I abstracted to an exported function all to no avail. Perhaps even though gnome-term is better at many things than xterm, xterm trumps it in this instance.