Search Results

Search found 6392 results on 256 pages for 'bash history'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 20/256 | < Previous Page | 16 17 18 19 20 21 22 23 24 25 26 27  | Next Page >

  • Bash, no-arguments warning, and case decisions

    - by Werner
    Hi, I am learning bash. I would like to do a simple script that, when not arguments given, shows some message. And when I give numers as argument,s depending on the value, it does one thing or another. I would also like to know suggestions for the best online manuals for beginners in bash Thanks

    Read the article

  • find: missing argument to -exec in bash script

    - by Mephi_stofel
    The following works fine when I type it exactly in the command line: find /<some_path>/{epson,epson_laser,epson_inkjet} -iname "*.ppd" -exec grep "\*ModelName\:" {} \; | sed 's/.*\"\(.*\)\"/\1/' However, when I try to call the following from a bash script I get find: missing argument to -exec'. I have also tried the following (in many variants): eval find "$1" -iname "*.ppd" -exec 'bash -c grep "\*ModelName\:" "$1" | sed "s/.*\"\(.*\)\"/\1/" \; as was mentioned in find-exec-echo-missing-argument-to-exec.

    Read the article

  • Ubuntu Bash Script changing file names chronologicaly

    - by Manifold
    I have this bash script where I am trying to change all *.txt files in a directory to their date of last modification. This is the script: #!/bin/bash # Renames the .txt files to the date modified # FROM: foo.txt Created on: 2012-04-18 18:51:44 # TO: 20120418_185144.txt for i in *.txt do mod_date=$(stat --format %y "$i"|awk '{print $1"_"$2}'|cut -f1 -d'.'|sed 's/[: -]//g') mv "$i" "$mod_date".txt done The error I am getting is: renamer.sh: 6: renamer.sh: Syntax error: word unexpected (expecting "do") Any help would be greatly appreciated. Thank you for your time.

    Read the article

  • Extract history from Korn shell

    - by Luc
    I am not happy about the history file in binary format of the Korn shell. I like to "collect" some of my command lines, many of them actually, and for a long time. I'm talking about years. That doesn't seem easy in Korn because the history file is not plain text so I can't edit it, and a lot of junk is piling up in it. By "junk" I mean lines that I don'twant to keep, like 'cat' or 'man'. So I added these lines to my .profile: fc -ln 1 9999 ~/khistory.txt source ~/loghistory.sh ~/khistory.txt loghistory.sh contains a handful of sed and sort commands that gets rid of a lot of the junk. But apparently it is forbidden to run fc in the .profile file. I can't login whenever I do, the shell exits right away with signal 11. So I removed that 'fc -l' line from my .profile file and added it to the loghistory.sh script, but the shell still crashes. I also tried this line in my .profile: strings ~/.sh_history ~/khistory.txt source ~/loghistory.sh That doesn't crash, but the output is printed with an additional, random character in the beginning of many lines. I can run 'fc -l' on the command line, but that's no good. I need to automate that. But how? How can I extract my ksh history as plain text? TIA

    Read the article

  • Teminal non-responsive on load, can't enter anything until CTRL+C

    - by Silver Light
    Hello! I have an issue with terminal in Ubuntu 10.04. When I launch it, it hangs, like this: I cannot do anything until I press CTRL+C: I cannot remember when this started. What can be wrong? Looks like teminal is loading or processing something each time it loads. How can I diagnose and solve this problem? EDIT: Here are the conents of ~/.bashrc: # ~/.bashrc: executed by bash(1) for non-login shells. # see /usr/share/doc/bash/examples/startup-files (in the package bash-doc) # for examples # If not running interactively, don't do anything [ -z "$PS1" ] && return # don't put duplicate lines in the history. See bash(1) for more options # ... or force ignoredups and ignorespace HISTCONTROL=ignoredups:ignorespace # append to the history file, don't overwrite it shopt -s histappend # for setting history length see HISTSIZE and HISTFILESIZE in bash(1) HISTSIZE=1000 HISTFILESIZE=2000 # check the window size after each command and, if necessary, # update the values of LINES and COLUMNS. shopt -s checkwinsize # make less more friendly for non-text input files, see lesspipe(1) [ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)" # set variable identifying the chroot you work in (used in the prompt below) if [ -z "$debian_chroot" ] && [ -r /etc/debian_chroot ]; then debian_chroot=$(cat /etc/debian_chroot) fi # set a fancy prompt (non-color, unless we know we "want" color) case "$TERM" in xterm-color) color_prompt=yes;; esac # uncomment for a colored prompt, if the terminal has the capability; turned # off by default to not distract the user: the focus in a terminal window # should be on the output of commands, not on the prompt #force_color_prompt=yes if [ -n "$force_color_prompt" ]; then if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then # We have color support; assume it's compliant with Ecma-48 # (ISO/IEC-6429). (Lack of such support is extremely rare, and such # a case would tend to support setf rather than setaf.) color_prompt=yes else color_prompt= fi fi if [ "$color_prompt" = yes ]; then PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ ' else PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ ' fi unset color_prompt force_color_prompt # If this is an xterm set the title to user@host:dir case "$TERM" in xterm*|rxvt*) PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1" ;; *) ;; esac # enable color support of ls and also add handy aliases if [ -x /usr/bin/dircolors ]; then test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)" alias ls='ls --color=auto' #alias dir='dir --color=auto' #alias vdir='vdir --color=auto' alias grep='grep --color=auto' alias fgrep='fgrep --color=auto' alias egrep='egrep --color=auto' fi # some more ls aliases alias ll='ls -alF' alias la='ls -A' alias l='ls -CF' # Add an "alert" alias for long running commands. Use like so: # sleep 10; alert alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"' # Alias definitions. # You may want to put all your additions into a separate file like # ~/.bash_aliases, instead of adding them here directly. # See /usr/share/doc/bash-doc/examples in the bash-doc package. if [ -f ~/.bash_aliases ]; then . ~/.bash_aliases fi # enable programmable completion features (you don't need to enable # this, if it's already enabled in /etc/bash.bashrc and /etc/profile # sources /etc/bash.bashrc). if [ -f /etc/bash_completion ] && ! shopt -oq posix; then . /etc/bash_completion fi # Source .profile if [ -f ~/.profile ]; then . ~/.profile fi Setting -x at the beginning showed me that it tries to repeat this without stopping: +++++++++++++++++++ '[' 'complete -f -X '\''!*.@(pdf|PDF)'\'' acroread gpdf xpdf' '!=' 'complete -f -X '\''!*.@(pdf|PDF)'\'' acroread gpdf xpdf' ']' +++++++++++++++++++ line='complete -f -X '\''!*.@(pdf|PDF)'\'' acroread gpdf xpdf' +++++++++++++++++++ line='complete -f -X '\''!*.@(pdf|PDF)'\'' acroread gpdf xpdf' +++++++++++++++++++ line=' acroread gpdf xpdf' +++++++++++++++++++ list=("${list[@]}" $line) +++++++++++++++++++ read line

    Read the article

  • Exclude string from wildcard in bash

    - by Peter O'Doherty
    Hi, I'm trying to adapt a bash script from "Sams' Teach Yourself Linux in 24 Hours" which is a safe delete command called rmv. The files are removed by calling rmv -d file1 file2 etc. In the original script a max of 4 files can by removed using the variables $1 $2 $3 $4. I want to extend this to an unlimited number of files by using a wildcard. So I do: for i in $* do mv $i $HOME/.trash done The files are deleted okay but the option -d of the command rmv -d is also treated as an argument and bash objects that it cannot be found. Is there a better way to do this? Thanks, Peter #!/bin/bash # rmv - a safe delete program # uses a trash directory under your home directory mkdir $HOME/.trash 2>/dev/null # four internal script variables are defined cmdlnopts=false delete=false empty=false list=false # uses getopts command to look at command line for any options while getopts "dehl" cmdlnopts; do case "$cmdlnopts" in d ) /bin/echo "deleting: \c" $2 $3 $4 $5 ; delete=true ;; e ) /bin/echo "emptying the trash..." ; empty=true ;; h ) /bin/echo "safe file delete v1.0" /bin/echo "rmv -d[elete] -e[mpty] -h[elp] -l[ist] file1-4" ;; l ) /bin/echo "your .trash directory contains:" ; list=true ;; esac done if [ $delete = true ] then for i in $* do mv $i $HOME/.trash done /bin/echo "rmv finished." fi if [ $empty = true ] then /bin/echo "empty the trash? \c" read answer case "$answer" in y) rm -i $HOME/.trash/* ;; n) /bin/echo "trashcan delete aborted." ;; esac fi if [ $list = true ] then ls -l $HOME/.trash fi

    Read the article

  • Bash script not working on a new dedicated server

    - by Scott
    Recently I have migrated to the new dedicated server which is running on the same operating system - FreeBSD 8.2. I got a root account access and all permissions have been set properly. My problem is that, the bash script I was running on the old server doesn't works on the new machine, the only error appearing while running the script is: # sh script.sh script.sh: 3: Syntax error: word unexpected (expecting ")") Here is the code itself: #!/usr/local/bin/bash PORTS=(7777:GAME 11000:AUTH 12000:DB) MESSG="" for i in ${PORTS[@]} ; do PORT=${i%%:*} DESC=${i##*:} CHECK=`sockstat -4 -l | grep :$PORT | awk '{print $3}' | head -1` if [ "$CHECK" -gt 1 ]; then echo $DESC[$PORT] "is up ..." $CHECK else MESSG=$MESSG"$DESC[$PORT] wylaczony...\n" if [ "$DESC" == "AUTH" ]; then MESSG=$MESSG"AUTH is down...\n" fi if [ "$DESC" == "GAME" ]; then MESSG=$MESSG"GAME is down...\n" fi if [ "$DESC" == "DB" ]; then MESSG=$MESSG"DB is down...\n" fi fi done if [ -n "$MESSG" ]; then echo -e "Some problems ocurred:\n\n"$MESSG | mail -s "Problems" [email protected] fi I don't really code in bash, so I don't know why this happend...

    Read the article

  • How to make bash script run with a latency (i.e. wait 1 sec at each iterations)?

    - by user2413
    I have this bash script; for (( i = 1 ; i <= 160 ; i++ )); do qsub myccomputations"${i}".pbs done Basically, I would prefer if there was a 1 second delay between each iteration. The reason is that at each iterations, it sends the program file mycomputation"${i}$.pbs to a core node for solving. Solving in this instance involves the use of pseudo random numbers. I suspect the RNG I use (R's) uses CPU time as seed because as things are now I get repeating pseudo random numbers (at the rate of approx 1 out of 100). So how to you ask bash to for (( i = 1 ; i <= 160 ; i++ )); do wait 1 sec qsub myccomputations"${i}".pbs done

    Read the article

  • How to access Google Chrome browser history programmatically on local machine

    - by Tejas
    I want to write a simple program which shows my internet activity over a period of time (which site I visited, how many times and so on). I mostly use Google Chrome browser. I found out Chrome stores browser history at this location - C:\Documents and Settings\\Local Settings\Application Data\Google\Chrome\User Data\Default (please correct me if I'm wrong). How can I open the history files? They don't have any file extension. I could not open using notepad, SQLite browser. How do I access this data programmatically? I want to know which file format it is and how to read it using a programming language like C#.

    Read the article

  • Editing a BrowserField's History

    - by Woody
    I have a BrowserField in my app, which works great. It intercept NavigationRequests to links on my website which go to external sites, and brings up a new windows to display those in the regular Browser, which also works great. The problem I have is that if a user clicks a link to say "www.google.com", my app opens that up in a new browser, but also logs it into the BrowserHistory. So if they click back, away from google, they arrive back at my app, but then if they hit back again, the BrowserHistory would land them on the same page they were on (Because going back from Google doesn't move back in the history) I've tried to find a way to edit the BrowserField's BrowserHistory, but this doesn't seem possible. Short of creating my own class for logging the browsing history, is there anything I can do? If I didn't do a good job explaining the problem, don't hesitate for clarification. Thanks

    Read the article

  • Restore history and current page on resuming webview

    - by qubit
    I have a webview that I use to navigate from page to page. I have implemented go back and go forward. My problem is that when I return to the webview after visiting another activity, the history is lost i.e. the webview starts again on the first page. How do I code it so that after I call finish on the webview to swap to another activity on returning to the webview, the WebBackForwardList is restored and I am taken to the page I was on when I left the webview? I have tried overriding onSaveInstanceState and onRestoreInstanceState using webview.save/restoreState(bundle) but with no success. I have achieved returning to the last page by saving the last url in preferences, but have been unable to restore the entire history.

    Read the article

  • Bash vs. Gnu screen : Replace Ctrl-A with Ctrl-Shift-A

    - by Stefan Lasiewski
    I'm a new user to GNU Screen. I've been using Bash for a very long time, and I want to give GNU Screen a try. As you know, GNU Screen uses 'C-a' (Control-A) as as the command character. Trouble is, this interferes with the Line Editing feature in Bash (and GNU Readline), because Control-A in Bash will Move to the start of the line." I know I can set the Command Character to another key sequence, like "^Q" or "``" (Backtick), but I have trouble finding another key sequence which isn't already in use (^Q is used by the terminal, backtick is used when writing shell scripts). It appears that the Command Character may only be one or two characters in length. Can I set the GNU Screen control character to be something like "Control-Shift-A"? (I can't use more then one hyperlink yet, so I cannot link to the Bash documentation)

    Read the article

  • bash starts replacing the characters on the current line insead of moving over to the next line

    - by Lazer
    I use bash shell $ bash --version GNU bash, version 3.2.25(1)-release (x86_64-redhat-linux-gnu) Copyright (C) 2005 Free Software Foundation, Inc. $ Sometimes, when typing a command on the prompt that is pretty lengthy and does not fit in the current line, instead of displaying the extra characters on the next line, bash starts again on the current line.. replacing the characters that were there and making a mess. what should happen : |---------------------------------------------| | $ my big long command takes a lot of argumen| | s and does not fit in a single line | | | |---------------------------------------------| what happens instead : |---------------------------------------------| | s and does not fit in a single linef argumen| | | | | |---------------------------------------------| The issue is intemittent If I resize my shell window to really small width, normal behaviour is restored Does anyone have any idea what is happening here? $ echo $TERM xterm $ echo $PS1 \[\e[30m\][\t]\[\e[0m\]\[\e]0;\w\a\]\[\e[30m\][\W]$ $

    Read the article

  • Does bash have a hook that is run before executing a command?

    - by Gilles
    In bash, can I arrange for a function to be executed just before running a command? There is $PROMPT_COMMAND, which is executed before showing a prompt, i.e., just after running a command. Bash's $PROMPT_COMMAND is analogous to zsh's precmd function; so what I'm looking for is a bash equivalent to zsh's preexec. Example applications: set your terminal title to the command being executed; automatically add time before every command.

    Read the article

  • When to use Bash, when Python/Perl/Ruby? [closed]

    - by futlib
    What's your rationale for when to write a Bash script and when to use a more powerful scripting language (Python, Perl, Ruby, ...)? I'm finding that very simple scripts are nicer with Bash, but many of those get quite fancy over time, and it never seems like a good idea to rewrite the whole thing. That's why I'm leaning towards always using Python for all scripting. But since Bash seems to be the the lingua franca of Linux scripting, is that something a responsible system administrator would do?

    Read the article

  • Bash child proccess PID - how do you get it?

    - by Jason Tan
    Can any one tell me how to get the PID of a command executed in bash. E.g. I have a bash script that runs imapsync. When the script is killed the imapsync process does not always get killed, so I'd like to be able to identify the PID of imapsync programatically from my script, so that I can kill the imapsync process myself in a signal handler. So how do I programatically get the PID of a child process from a parent bash script? Thanks Folks

    Read the article

  • How can I upgrade bash to >= 4.1 on CentOS 5.5?

    - by Agvorth
    I have a CentOS 5.5 VPS server. I want to use RVM. According to the console output when I run the RVM installer, RVM requires bash = 4.1. I just ran yum update. My bash version is now 3.2.25. If I understand how yum works, that means that 3.2.25 is sort of the version of bash that "belongs with" my CentOS version, and it's the latest version I can get using yum. (Right? Or am I wrong about this?) How can I get that on my CentOS 5.5 system? To clarify, I understand that I can just download the source and install, but I'm hesitant to break out of yum's version management system. Is there a way to upgrade bash without disrupting yum?

    Read the article

  • how to copy the results from a grep command to the bash clipboard?

    - by avilella
    If I type something in a Linux bash terminal with no X, and then use Ctrl+u, whatever I typed is stored in the bash "clipboard" (for lack of a better term), and I can type it again doing Ctrl+y. How can I copy the results from a grep command on a text file to such bash clipboard? For example, if I have an INSTALL file like this: ./installprocedure --do-some-long-and-complicated-operation-on-dir dir1 How can I copy the content of a grep command so that it's available doing Ctrl+y? For example: copy content to bash clipboard "grep installprocedure INSTALL" Ctrl+y ./installprocedure --do-some-long-and-complicated-operation-on-dir dir1 #cursor available here

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 16 17 18 19 20 21 22 23 24 25 26 27  | Next Page >