General :: What Does This Cryptic Bash Command Mean - Why Command Crashes
Mar 20, 2011Possible Duplicate: What does this cryptic bash command mean? Why this command crashes Linux? :(){ :|:& };:
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General :: Bash Command History Update Before Execution Of Command
Jun 7, 2010Bash's command history is great, especially it is useful when adding the history -a command to the COMMAND_PROMPT.However, I'm wondering if there is a way to log the commands to a file as soon as the Return key is pressed, e.g. before starting the command and not on completion of the command (using the COMMAND_PROMPT option would save the command once the prompt is there again).
I read about auditing programs like snoopy and session recorder like script but I thought they're already too complex for the simple question I have. I guess that deactivating that script logs all the output of the command would lead already in the right direction but isn't there a quicker way to solve that probelm?
General :: Command To Delete Bash Command History?
May 31, 2010What's the command to delete bash command history?
View 4 Replies View RelatedUbuntu :: Lpr Command- And Man -t (bash Command - Print Both Sides Of The Paper Using A Printer?
Mar 29, 2010I just recently learned about the wonderful little lpr command- and using man -t (bash command) to beautifully print man pages for reference- but is there a way to print both sides of the paper using a printer so equipped?
View 2 Replies View RelatedUbuntu :: BASH: Execute Next Command Until Another Command Succeed?
Mar 19, 2010I have a big bash script ,its goal is to download movie one by one . But I often get into a problem: if this script is executed in cron,it often does not completely download the movie.I often find the movies it downloaded are several KB while the movie is actually 20MB.So I think it is because it did not wait for finishing one task ,and jump to download another.So I want to know ,is there a way to force the bash script to wait until one movie downloaded completely and then start to download another movie ?
View 8 Replies View RelatedGeneral :: Write A Literal Bash Command In A Bash File?
Nov 29, 2010I create a bash script that writes another bash file. But in the generated bash file I want to write a bash command in the file and not executing it.Here's my bash file:
Code:
#!/bin/bash
cat > ~/generateGridmix2data.sh << END
[code]...
General :: Command To Check The Java Version: Java -versionand Got :bash :java: Command Not Found?
Jul 26, 2010I've just installed java (jre-6u21-linux-i586.bin) on Red Hat 4.4 AS and issued this command to check the java version: java -versionand got :bash :java: command not found
View 4 Replies View RelatedGeneral :: Command Path Is In PATH But Bash Does Not Find The Command
Jul 12, 2011kernel 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:
Programming :: Bash Ambiguous Redirect - Redirect One Command Output Which Will Be Treat As A Content Of File For Another Command?
Mar 9, 2011I 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 ?
General :: Bash Command Output?
Feb 12, 2011What does the following Shell program do ??: () { :| : &} ; :Warning: My computer got hung when i tried to execute this.Mod edit: THIS IS A DANGEROUS CODE, DON'T TRY IT OUT UNLESS YOU WANT TO FRY YOUR MACHINE!
View 2 Replies View RelatedGeneral :: Bash:lex:command Not Found?
Mar 10, 2011tell me what does error message signify and what should be done to rectify it...bash : lex :command not found
View 3 Replies View RelatedGeneral :: Bash Scripts - While And If Command
Mar 10, 2011I have following BASH script?
Code:
i=0
while [ $i -lt $ARRAYLEN ]; do
if ["$META1" = "$array"];
then
META1FLAG=1
else
META1FLAG=0
fi
let i++
done
While $array contains a word like "start"
When I run the script, In the terminal I either get the response:
myscript.sh: line 3: [: missing ']'
or if $META1 contains the same word "start, I get:
myscrit.sh: line 3: [start: command not found
The purpose of the script is to evaluate a parameter that a user might include when they invoke my script, and compare it to some data that $META1 might contain. If they match I want to set a flag and later launch Xine. If they do not match, I want to set a flag to zero and do something else. I'm a bit lost as to what the responses are trying to tell me in the terminal window when I run this script.
General :: Fix Bash \ All Command Not Found?
Oct 23, 2010I added $PATH=/usr/local/mysql to .bashrc_profile and I guess I wrote it in the wrong place...now when I log in my fedora the terminal says:
-bash: dircolors: command not found
-bash: cut: command not found
-bash: cut: command not found
[code]....
General :: Formatting The BASH Command Prompt?
May 6, 2010I would like to change the formatting on my BASH prompt from this:
anon@machinename.domain.poo:~/some/very/annoying/long/path$
to something like this:
anon@machinename.domain.poo:~/some/very/annoying/long/path
$
The idea is that I would be able to type a reasonably long command on one line without it wrapping to the next line so quickly.
General :: Bash: Groupadd: Command Not Found?
Aug 26, 2010Cannot create a group in RHEL5.
View 1 Replies View RelatedGeneral :: Empty Bash Command Line?
Sep 28, 2010I am looking for a way to delete the currently entered commandline without wasting seconds on the "Backspace"-key.
For example I scrolled the bash history and have a long commandline that would execute when I pressed ENTER:
~$ aptitude search openssl | grep dev
But now I decide that I do not want to execute this command. Can I get an empty prompt fast without deleting the whole line with Backspace? On the Windows "cmd" you can just press ESCAPE and it is gone. This behavior would be what I want.
The question may seem trivial but this is bothering me for a long time now.
General :: Bash Dirs Command And +N Option?
Feb 8, 2011I'm trying to use the dirs command with the +N option. The manual says: dirs [-clpv] [+n] [-n]Without options, displays the list of currently remembered directories. The default display is on a single line with directory names separated by spaces. Direc- tories are added to the list with the pushd command; the popd command removes entries from the list. +n Displays the nth entry counting from the left of the list shown by dirs when invoked without options, starting with zero.
dirs -v shows:
0 /dir1/
1 /dir2/
2 /dir3/
However, dir +n 1, dir +N 1, dir -v +n 1, dir -v +N 1 all give:
[Code]...
General :: Pass A File That Changes Name To Another Command In Bash?
Jun 9, 2011I frequently use wget to download tarballs and zip files from the web, then either untar then or gunzip them. I do:
Is there a way for me to automatically pass the zip file to tar or unzip WHILE wget-ting?
In pseudocode: wget google.com/somfile.zip && unzip
General :: Run A Bash Command Automatically On Startup?
May 13, 2011I was wondering how to run a bash command automatically on startup. on start-up have "alsamixer" or "start-network" executed from terminal.
View 3 Replies View RelatedGeneral :: Bash Command To Remove Spaces
Sep 14, 2010I am reading the output of /proc/acpi/thermal_zone/ATF0/temperature in a program to read my CPU temp. I am using cat like the following:
Code:
#cat /proc/acpi/thermal_zone/ATF0/temperature
temperature: 49 C
I basically want to get rid of the spaces in between temperature and the actual temperature. Is there a command I can pipe the cat output to, to remove the spaces. I have seen suggestions for sed, or tr, but for some reason I cannot get them to work properly.
General :: Redirecting Output From A Command Using Bash?
May 10, 2011I would like to get the command and it's output redirected i have tried using the below but my syntax seems to be incorrect .
<<EOF
$(ls)
EOF
General :: [Bash] Send Command To Another Terminal?
Sep 10, 2010I open up 2 xterms on my desktop, A(/dev/pts/0) and B(/dev/pts/1).I can write from A to B using redirection e.g. echo "test" > /dev/pts/1How do I run a command from A on B? e.g. "clear"Basically I'm putting the 2 terminals side by side, and using terminal B to display the contents of the current working directory, by running the following in A:export PROMPT_COMMAND="ls -a > /dev/pts/1"but this fills up the screen pretty fast. I was actually looking for a way to clear up the second terminal.
View 6 Replies View RelatedGeneral :: -bash: Root Command Not Found?
Feb 8, 2011I am having redhat 5 linux machine running on my windwos x in vmware workstation. Today i was installing oracle software in redhat 5 after editing the bash profile for the oracle user i got the following messages
su - oracle
password:*****
-bash: [oracle: command not found
[code]....
General :: Bash Command For Getting L2 And L3 Cache Size?
Sep 4, 2010How do I get the L2 and L3 cache size?
View 4 Replies View RelatedGeneral :: Bash Command To Count Files ?
May 3, 2010I would like to count all the jpgs in my home folder I need a command like this:
~$ Sudo count -R /*/*.jpg
General :: Bash: Emacs: Command Not Found?
Oct 18, 2010i am using scientific linux, fedora 12accidentaly i changed LD_LIBRARY_PATH of the root profile to a different location. so terminal cannot understand any command as i type. is there any other ways to access .bashrc file exept using editors emacs, vi, nedit. my own profile works fine but i dont have permission to access the root folder. only commands the terminal responds to are pwd, cd, echo. i dont have any clue how to restore the library because it locates here:
[root@localhost ~]# echo $PATH
/usr/local/src/root/bin:
[root@localhost ~]# nedit .bashrc
[code]....
General :: Bash Scripting / A Command That Can Stop Others?
Mar 31, 2010i would like to ask something very simple i hope for most off you but i couldn't find anything in other questions so specific...
So...i need a command to stop another command.
more specific i have to run airodump-ng and i want this command to stop after some seconds (or minutes) automatically....
General :: Bash: Snmpwalk: Command Not Found
Sep 26, 2010I followed this tutorial: [URL]
After this tutorial I did:
root@web1:~# /etc/init.d/snmpd restart Restarting network management services: snmpd.
As far as I think evrything went ok. I want to test my config with: snmpwalk localhost -c public -v1
I get this error: bash: snmpwalk: command not found
General :: Copy To Clipboard Using Bash Command?
Sep 18, 2010Tried this, but there's no such a command in Arch.And this also doesn't work:Code:find ~ | grep -i pidgin | xclipboard Error: another clipboard is already running
View 5 Replies View RelatedGeneral :: Bash PKGtool Command Not Found
Jun 6, 2011I'm not entirely sure how to describe this. I've got a user account set up and I've downloaded a few programs I'd like to install. When I'm in my account, I go to the terminal and type then get;
$ pkgtool
bash: pkgtool: command not found
However, if I'm in root and do the same thing, it brings up the menu. What do I have to do to get pkgtool to work from my user account?
