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  • None of my bash commands work

    - by Kevin
    I have an Ubuntu 9.10 netbook. I has always run great. Two days ago, I was running as root for a while (~30), and when I moved back to my user account (only other account one this machine), all the commands in ~/bin stopped working. If I try ls, it comes up with "cannot execute binary file". Same with ln, mv, mkdir, clear, cp, etc. They all run as root(which makes sense, different files), but I have no idea why this happened. I don't want to stay as root to move around easily. Any idea?

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  • None of my bash commands work

    - by Kevin
    I have an Ubuntu 9.10 netbook. I has always run great. Two days ago, I was running as root for a while (~30), and when I moved back to my user account (only other account one this machine), all the commands in ~/bin stopped working. If I try ls, it comes up with "cannot execute binary file". Same with ln, mv, mkdir, clear, cp, etc. They all run as root(which makes sense, different files), but I have no idea why this happened. I don't want to stay as root to move around easily. Any idea?

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  • Running ssh-agent from a shell script

    - by Dan
    I'm trying to create a shell script that, among other things, starts up ssh-agent and adds a private key to the agent. Example: #!/bin/bash # ... ssh-agent $SHELL ssh-add /path/to/key # ... The problem with this is ssh-agent apparently kicks off another instance of $SHELL (in my case, bash) and from the script's perspective it's executed everything and ssh-add and anything below it is never run. How can I run ssh-agent from my shell script and keep it moving on down the list of commands?

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  • How to get both PIPESTATUS and output in bash script

    - by Mustafa Serdar Sanli
    I'm trying to get last modification date of a file with this command TM_LOCAL=`ls -l --time-style=long-iso ~/.vimrc | awk '{ print $6" "$7 }'` TM_LOCAL has value like "2012-05-16 23:18" after execution of this line I'd also like to check PIPESTATUS to see if there was an error. For example if file does not exists, ls returns 2. But $? has value 0 as it has the return value of awk. If I run this command alone, I can check the return value of ls by looking at ${PIPESTATUS[0]} ls -l --time-style=long-iso ~/.vimrc | awk '{ print $6" "$7 }' But $PIPESTATUS does not work as I've expected if I assign the output to a variable as in the first example. In this case, $PIPESTATUS array has only 1 element which is same as $? So, the question is, how can I get both $PIPESTATUS and assign the output to a variable at the same time?

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  • Make a Phone ring from BASH through a HUAWEI e220

    - by microspino
    Hello, I have a Debian Linux system with a HUAWEI e220 on /dev/ttyUSB0. I'd like to make It ring a generic GSM phone for just one time. I'm doing this because I'd like to build an embedded system that fires some special behavior by a single GSM phone ring. How can I do It? I've tried wvdial but I receive always a "NO CARRIER" answer when I try to send It an "ATDT XXX-phone-number-to-dial-XXX" command.

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  • Creating new bash command for Sublime Text 2

    - by Gavin
    I'm trying to get Sublime Text 2's command line alias working. The instructions make perfect sense: Run ln -s "/Applications/Sublime Text 2.app/Contents/SharedSupport/bin/subl" ~/bin/subl So, in ~/bin, subl exists. However, even when I restart terminal, the command 'subl' is not found. The path specified to the application's subl file is correct, I've verified that. Logging out does not fix it. Any help would be awesome!

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  • invalid argument in bash script when port is bad

    - by user273689
    When I do this command I get an error when there is something wrong with the eth3. RESC="1234" RESD="1234" RESO="1234" RESC=$(ssh -q vmx@$1 cat /sys/class/net/$2/carrier) RESO=$(ssh -q vmx@$1 cat /sys/class/net/$2/operstate) RESD=$(ssh -q vmx@$1 cat /sys/class/net/$2/dormant) cat: /sys/class/net/eth3/carrier: Invalid argument cat: /sys/class/net/eth3/dormant: Invalid argument How can I use the invalid argument inside the RESC and RESD variable Thanks

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  • Unable to specify parameters to cvlc in a script

    - by VxJasonxV
    I'm creating a script that issues a few curl commands in order to access a time-protected mms stream link, then set up a relay using cvlc (vlc's command line interface) for my own use on an unencumbered player. The curl aspect of this is working, as I can run as a browser and curl side by side and get the same access url. (It's time locked meaning the stream will work forever, but you have to connect quickly or the URL will time out.) The very end of the script prints the command I will run, which is then followed up by "exec $CMD". When I echo $CMD I get: cvlc --sout '#standard{access=http,mux=asf,dst=0.0.0.0:58194}' mms://[...] Manually Copy/Pasting this command in, verbatim, works perfectly fine, but as part of a script, the cvlc execution output says: [0x9743d0] main interface error: no suitable interface module [0x962120] main libvlc error: interface "globalhotkeys,none" initialization failed [0x9743d0] dummy interface: using the dummy interface module... [0xb16e30] stream_out_standard stream out error: no mux specified or found by extension [0xb16ad0] main stream output error: stream chain failed for `standard{mux="",access="",dst="'#standard{access=http,mux=asf,dst=0.0.0.0:58194}'"}' [0xb11cd0] main input error: cannot start stream output instance, aborting [0xb11f70] signals interface error: Caught Interrupt signal, exiting... Why is --sout behaving one way in a script (non-interactive shell?) vs. another way in the foreground (interactive shell) ?

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  • Reverse bash console text flow

    - by radman
    Hi, This is a bit of a weird question and I'm not sure that there is any easy answer to it but I am very interested in finding a solution. So when I work on a linux machine via a console I find that I am constantly staring at the bottom of the screen, as once you have executed a bunch of commands text fills toward the bottom. Now I find that this is decidedly not good for my neck and it would be far better if instead of scrolling to the bottom, the text would scroll to the top instead. So does anyone out there know if there is a way to reverse the direction text appears in a console? (note that i am aware of the clear command) Example: default behaviour user@machine:~$ command 1 user@machine:~$ command 2 user@machine:~$ command 3 user@machine:~$ __active_prompt__ desired behaviour user@machine:~$ __active_prompt__ user@machine:~$ command 3 user@machine:~$ command 2 user@machine:~$ command 1 Running Kubuntu 10.04 using Konsole I realise this is an odd question, thanks for any help.

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  • Placement of command line options in bash

    - by Nathan Rambeck
    I just starting using a Mac and have been frustrated that command line options are required immediately following the command so that this works: ls -la /usr but this doesn't: ls /usr -la ls: -la: No such file or directory Is there any way to change this? Or can someone tell me why the placement of options is agnostic on most Linux platforms, but not on Mac?

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  • Prefix time to each line of bash command output

    - by neildeadman
    I am running the top command to see details about specific processes. The output is piped to grep like so: top -n 1 | grep jre The output is usually around 4 lines, and I would like to prefix the current time to each line so it would be something like: Before: 2772 deleteme 20 0 2832 1156 872 R 2.0 0.1 0:00.01 top After: 13:46 25-08-2012 2772 deleteme 20 0 2832 1156 872 R 2.0 0.1 0:00.01 top

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  • Rsync plugin to many local wordpress installs via script or cli

    - by Nick Abbey
    I am maintaining a large number of wordpress installs on a production server, and we are looking to deploy InfiniteWP for managing these installs. I am looking for a way to script the distribution of the plugin folder to all of these installs. On server wp-prod, all sites are stored in /srv//site/ The plugin needs to be copied from ~/iws-plugin to /srv//site/wp-content/plugins/ Here's some pseudo code to explain what I need to do: array dirs = <all folders in /srv> for each d in dirs if exits "/srv/d/site/wp-content/plugins" rsync -avzh --log-file=~/d.log ~/plugin_base_folder /srv/d/site/wp-content/plugins/ else touch d.log echo 'plugin folder for "d" not found' >> ~/d.log end end I just don't know how to make it happen from the cli or via bash. I can (and will) tinker with a bash or ruby script on my test server, but I'm thinking the command-line-fu here on SF is strong enough to handle this issue much more quickly than I can hack together a solution. Thanks!

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  • Bash loop to move directories on a remote host via ssh

    - by I Forgot
    I'm trying to figure out a way to perform the following loop on a remote host via ssh. Basically it renames a series of directories to create a rotating backup. But it's local. I want it to work against directories on a remote host. while [ $n -gt 0 ]; do { src=$(($n-1)) dst=$n if [ -d /backup/$src ]; then { mv /backup/$src /backup/$dst; } fi; } ((n--)) done;

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  • bash pipe construct to prepend something to the stdoutput of previous command

    - by AndreasT
    I want to use sendmail to send me stuff and want to do it in a oneliner. echo "mail content" | sendmail emailataddres.com Sends it without subject. The subject line must come before the Mail content, so I am looking for something along the lines of: echo "mail content" | prepend "Subject: All that matters" | sendmail emailataddres.com sed and awk tend to be really awkward to use and remember. EDIT:Just to clarify: echo "Mail content" is just an illustrating example. I need to be able to prepend stuff to stdout streams from any source. e.g.: ifconfig, zcat, etc..

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  • weird problem with bash

    - by Arcath
    I recently changed my .bashrc and tweaked how my PS1 looks, but now it has a very wierd problem, before the end of the line in terminal (about 2 3rds of the way in) it jumps back to the begining of the line like so: e before itarcath@Highgate][~/.gconf/apps/gedit-2/preferences] how long can a command b My first though was was that it wasnt getting the terminal size properly but tput cols returns the correct value. My.bashrc: http://github.com/Arcath/.Files/blob/master/dotfiles/.bashrc

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  • exported variable not persisted after script execution

    - by Daniele
    I'm facing a wierd issue. I've a vm with solaris 11, and trying to write some bash scripts. if, on the shell, I type : export TEST=aaa and subsequently run: set I correctly see a new environment variable named TEST whose value is aaa. If, however I do basically the same thing in a script. when the script terminates, I do not see the variable set. To make a concrete example, if in a file test.sh I have: #!/usr/bin/bash echo 1: $TEST #variable not defined yet, expect to print only 1: echo 2: $USER TEST=sss echo 3: $TEST export TEST echo 4: $TEST it prints: 1: 2: daniele 3: sss 4: sss and after its execution, TEST is not set in the shell. Am I missing something? I tried both to do export TEST=sss and the separate variable set/export with no difference.

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  • Bash shell prompt: where is $RET?

    - by Evgeni Sergeev
    I was reading this https://wiki.archlinux.org/index.php/Color_Bash_Prompt and ended up with the following: # Stores the status of each command in $RET PROMPT_COMMAND='RET=$?;' # A colour. RED_SHELL='\e[0;36m' # Prints "Status 1" if RET is 1, for example. RET_VISUALISE='$(if [[ $RET != 0 ]]; then echo -ne "Status \[$RED_SHELL\]$RET\n" && RET=0; fi;)' # What to print for each prompt. PS1="$RET_VISUALISE\[\e]0;\w\a\]\n\[\e[32m\]\u@\h \t \[\e[33m\]\w\[\e[0m\]\n\$ " This does almost what I want, except when I press Enter,Enter,Enter multiple times after a command that returned status != 0. In this case it prints "Status 1" every time I press Enter. This is what the && RET=0; part was supposed to get rid of. Also, I don't understand why env | grep RET only shows the PS1 contents. What is the scope of $RET ?

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  • Looking for a recommendation for an OS X Bash manual

    - by Mental Sticks
    I've just begun to use the Terminal in Mac OS X and I've found the man command very useful, although very often the explanations are too compact or complicated for me. I am looking for a very basic reference guide – like O'Reilly makes, for example. But in there I didn't find an entry for basic commands like ls or ln and a layman's explanation of all the flags and options. Could anybody recommend me something?

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  • Delete recursive directorys with FTP command on Bash

    - by Fake4d
    I have a problem with my infrastructure here. I am in a closed DMZ and have to access a FTP-Server in another DMZ from a headless Suse Linux 10.1. So i think i only got the ftp command.. But i have to delete a directory with about 100 subdirectorys and endless files in it.. When I type del directory it returns "Its not empty" and so i have to delete each sub directory and file manually. Oh please tell me a way how i can do this automatically :)

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  • In Bash, how can I obtain the directory path from the previous command's last argument

    - by Beaming Mel-Bin
    I frequently have to do this. For example: $ vim /etc/pam.d/sudo $ vim /etc/pam.d/sudo-i $ cd /etc/pam.d/ # Figure I should just go to the directory Now, is there a way I could obtain the directory of the last argument when it's a file path? I'm asking this cause I recently became aware of the $_ variable that has become useful. Was wondering if there's some other commandline fu that might come in handy.

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