Bash is a free shell for Unix-like operating systems from the GNU Project.

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Cygwin and Cygwin64 missing prompt in terminal

I tried to install and reinstall cygwin and cygwin64. I also tried different mirror sites. Instead of seeing a line like user@PC~ $, I see a blank screen with a blinking cursor. The properties of ...
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55 views

bash Segfault by infinite recursion

I just noticed that the bash I'm using (4.2.25(1)) isn't protected against infinite function recursion. In such a case a Segfault happens (and the bash process terminates). To check this on your ...
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21 views

Grep from Log & Calculate then alert

I have a log file, which has the below lines in it. I need a bash script, which takes the values in Bold (4092.1M / 20.1G) & do the math & then alert from Zabbix [Eden: ...
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27 views

Bash partial glob expansion

I have a question similar to this one, but different: I want bash to use a glob expansion in auto-completion, if possible. For example, I would like $ ls *2.<TAB> To give me: $ ls mydoc2. ...
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71 views

Gnu screen, using the exec command in .screenrc

I have added the following lines to my .screenrc bind -c music u exec amixer sset Master,0 5+ >& /dev/null bind -c music d exec amixer sset Master,0 5- >& /dev/null bind -c music t exec ...
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32 views

Top -l returning always 0.0 CPU usage when requesting single PID

On Mac OS X 10.9 (Mavericks) & 10.10 Yosemite I’m unable to get the correct CPU usage for a single process using the top -l command for example top -l 1 -ncols 3 -pid <pid> Even though I ...
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167 views

Pacmd dynamic range compression Ubuntu 14.04

I used the answer at the link below to successfully set Dynamic Range Compression on my Ubuntu media box running Ubuntu 14.04 (SteamOS session, so no Ubuntu desktop session available). Realtime sound ...
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133 views

Alternative ways of passing PS1 env variable into Ubuntu for SSH session

I know that there are twenty thousand answers, none of them worked as expected, I'm more surprised than you are, so please consider reading the story first. I'm trying to achieve what appears to be a ...
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161 views

PuttyCyg not starting correctly: “Must be connected to a terminal” error message

My computer is running Windows 7 SP1 64 bits with CygWin 64 bits installed and updated (as for 16-Nov-2014). I need to run the screen program of CygWin in a text console. I am trying PuttyCyg, a ...
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89 views

Can I use ProxyCommand to run arbitrary commands on a target server via a jumpbox/middle server?

At work, we have a number of servers that we can only SSH into from our jumpbox server. Every now and then I need to execute a command on these servers. For example, if I want to execute df -H on ...
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63 views

How to enable windows-style cntrl+backspace in msysgit (git bash)?

I would like to configure my msysgit environment to use windows-style backspace shortcuts, i.e. cntrl+backspace deletes a word. I found this ...
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47 views

What triggers dropbox on fedora to upload files?

I am writing a computer simulation on a Fedora system, but wants to postprocess the data using MATLAB on a windows installation. My method for transferring files is Dropbox since the two computers are ...
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273 views

smbclient fails silently to copy file in bash script

I have the following script: #!/bin/sh BACKUP=/respaldoBD NOW=$(date +"%d_%m_%Y") SMBCLIENT="$(which smbclient)" DBS="zabbix" for db in $DBS do FILE="mysql_$db.$NOW.gz" echo $FILE PARM="prompt; ...
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96 views

curl won't shut up (--silent does nothing)

I'm writing a quick shell script, and I cannot for the life of me get curl to suppress the progress bar. The relevant line looks like this: curl http://website -o $temp >/dev/null 2>&1 ...
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76 views

popd and pushd behavior with “-n” option

I've been experimenting with pushd and popd in bash (Cygwin, man page says "GNU bash 4.1") and the man page doesn't quite seem to match the behavior. For pushd, the command % pushd +1 both ...
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57 views

Recursive search occurs instead of last command when using up arrow.

I'm using an internal product "shell" based on spring shell. When I press the up arrow to get my last command, instead I get (reverse-i-search)`': Retrieving the last command works for all my ...
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94 views

Dtrace shows posix_spawn called with only 3 argument. Trying to launch by hand

I ran dtruss on a process that launches another one: the League of Legends Launcher starts the main game process with certain arguments that I can't seem to pass via the command line. What caught my ...
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20 views

Reusing _kill completion in .bashrc fails

I'm trying to extend bash completion alias perf-connect-process="perf record -p"; alias pperf=perf-connect-process; complete -F _kill perf-connect-process; complete -F _kill pperf; by reusing the ...
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360 views

OSX OSX Mavericks: Cannot login: Corrupt password file: Recovery mode bash not working for resetpassword script

Running OSX Mavericks on Macbook Air SDD disk. The system has corrupted the password file so none of my six identities can log in - password invalid. Following discussions and tests with apple ...
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198 views

File or folder not found error, but the file exists

I downloaded the android ADT bundle for Linux(my distro is Elementary OS), and after I unzipped it, I opened the folder sdk/platform-tools on terminal, and tried running the adb file. When running the ...
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131 views

How to open a local file with a query string appended to it in the default browser?

I want to do something like this from a shell script: $ open 'foo.html?foo=bar' Sadly that fails, as it looks for a file named foo.html?foo=bar instead of foo.html before opening the browser: The ...
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170 views

Unable to access samba file share after mounting on Mac

I am trying to automate mounting, copying a file to a samba shared folder and then unmounting the drive from my Mac. I wrote a simple bash script to do it #!/bin/bash echo "Mounting Drive" mkdir ...
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190 views

How can I get Homebrew and MAMP (Pro) to play nicely together?

I am using MAMP Pro for most of my local application development and am trying to install ruby , etc via homebrew however homebrew will give me the following warning: Warning: "config" scripts exist ...
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91 views

Terminal's bin/bash not responding

I have Googled through several instances of this issue but cannot get Terminal to open up with bash. I restarted the program, the computer and even logged in through another Administrator account but ...
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26 views

Path slashes disappear on coloured bash prompt

So in my .bashrc, I set my prompt to be colourful by setting PS1 to \[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]$ For some ...
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1k views

What is the different between “sudo su” and “sudo bash”?

In Ubuntu 13.10, for the default setting, the following command in Terminal user@host:~/path$ sudo su results in entering an prompt root@host:/home/user/path# And this command ...
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526 views

execl: couldn't exec `/bin/sh'

I accidentally moved the whole bin, boot, dev and etc directory. After moving everything back I get the following error email from various cron jobs: execl: couldn't exec `/bin/sh' execl: No such ...
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492 views

find command with exec sh doesn't work in shell script but in commandline (raspberrypi)

I want to find "old" folders in /volume1/photo/ipcam which are named like "????-??-??" and move corresponding folders within dropbox (with the same directory structure /ipcam/...) to the subfolder ...
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59 views

Cron deamon written in shell

I'm looking for a script in bash or ksh, that would do ... more or less ... the same as crond. The situation is, that our system administrator suddenly denied the use of crontab to all regular users ...
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131 views

mergecap fails to create output file when run from crontab

I have created a script to merge pcap files using 'mergecap -w '. The script doesn't work as the output file is not already present. So I tried to use 'touch outputfile.pcap' before the mergecap ...
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38 views

Tab completion that honors $CDPATH

I've installed bash_completion and set my $CDPATH. I can successfully cd to subdirectories of those in my $CDPATH. What I'd like to do from here is for tab completion to bring up files in those ...
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113 views

Unintended autocomplete or alias in Terminal

There is a "strange" autocomplete function in my macbook. If I try to type "ps -aux" in terminal (iTerm or TotalTerminal) with the hit of "s" in ps, automatically this happens: "ps -p $$ # Tells the ...
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227 views

Writing CPU usage by core and RAM/CPU usage by process to a logfile in OS X

I am writing a script that writes memory and CPU usage to a log file, every hour on a cronjob. The logfile will look something like this: "/n====CPU usage by core====" Core0: 59.05% used ...
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57 views

Msys cd .. command takes me to home directory instead of parent

I'm using Msys on Windows 7 with what I believe to be a Bash shell. I want to navigate the following directory structure: Drive (M:) +--- Coding +--- CPP +--- projects +--- ...
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111 views

Ncat throws errors while being run from crontab

I have a simple script set up on my OpenWrt box to check if one of the computers in a local network is streaming, and if it does, the script starts wget | madplay to play the stream. Script works ...
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59 views

shell script for finding the unix noun phrase

one entry in the on database is: LPE-1*story#1/1 of pearl#1/2*historia de la perla*storia della perla* histoire de la perle* história da pérola*istoria perlei*TOPIC The fields are separated by ...
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62 views

Running a symlink locally

I am running the same program multiple times over a linux platform. It is compiled at another server, and frequently updated, and it's uploaded over through rsync to all "hosting" servers, which do ...
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48 views

Script to port specifc data from doc1 (notepad++) to specific place(s) in doc2

I really appreciate your help with a windows script or regex function that ports specific data from doc1 (xml in notepad++) to specific place(s) in doc2 (notepad++). I'm running win8. Thank you in ...
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224 views

“Script” command in Bash on Mac OSX

quick question regarding the "script" command in Bash on a Mac OSX 10.8.4 system. In any other bash environment on Fedora, CentOS, etc; when I use the script command it just begins recording with no ...
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94 views

iWork Keynote: Automate video export with custom settings for multiple files

I have a couple of Apple iWork Keynote presentations and exporting it to Quicktime with my customized settings from within Keynote is straightforward. But here's my problem: How do I manage to ...
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156 views

xdotool : close all windows except the one that is active (infront)

I would like to execute a command that will close all windows except the one that is currently active. i would likely to place this command in the gnome-panel which means when i click on the button, ...
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103 views

Automatically closing idle windows in Gnome

Can open windows automatically close themselves if they have not been used for X seconds in Gnome? For example, right now I have some Firefox windows and some other file browser windows etc open ...
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426 views

How to kill process under cygwin after using kill -9 which does not work

I am using cygwin on Windows7. I tried to kill process on cygwin using kill -9, but it said 'No such process'. $ ps PID PPID PGID WINPID TTY UID STIME COMMAND 3976 ...
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107 views

Bash Terminal keeps clearing / overwriting itself

My bash terminal on Ubuntu 12.04 64 bit keeps clearing itself partially when the output is too big. If I do a ls -al in a directory with many files. The terminal prints the result, inbetween it ...
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40 views

How to make tab completion work within parentheses

On my Ubuntu machine, I can do this emacs $(which first-part-of-executable<tab> and bash will tab-complete the full executable name. I enabled this myself by adding complete -c which to ...
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315 views

ssh Prompts For Password After Account Unlocked - Despite ssh key?

Here's what happened: I set up ssh key so that user could ssh from A to B without a password. I got user's password wrong in some other context too many times, and user's account got locked out. ...
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73 views

Bash Shell doesn't recognize the letter “t”

I have Cygwin running on a Windows 7 Box. In what is a relatively new (and strange) development, the bash shell stopped recognizing the lowercase "t". For example: I type echo cat, output is ...
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117 views

Getting bash history-complete-backwards/fowards and vi-mode to work with tmux

I'm using bash on Ubuntu 12.04 my inputrc contains: "\e[A": history-search-backward "\e[B": history-search-forward set show-all-if-ambiguous on set completion-ignore-case on"" for my history ...
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756 views

File shows different size after copying to another directory

I used cp -rP <dir name> <new dir name> to copy the contents of a directory, including permissions etc from one dir to another. The odd thing is, either du is giving me some strange ...
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220 views

Can't seem to connect to Win 7 share with smbclient 3.5.5 on Haiku

I did the registry mods mentioned here but cannot seem to connect. I say seem to, because there's no error message. smbclient \\\\WIN7MACHINE\\ -U myusername smbclient \\\\WIN7MACHINE\\ -U% ...