0
votes
0answers
26 views

Entered wrong .bash_profile and now my laptop is running hot

I am just learning how to use the command line and was editing the bash prompt setting in .bash_profile. I made an error in the prompt settings in .bash_profile and I lost the prompt and the ability ...
2
votes
1answer
36 views

wc / cat command not found

I'm trying to run some simple bash script which uses wc and cat commands. The script fails with this: wc: command not found or this (after I commented string which uses wc): cat: command not found ...
0
votes
1answer
12 views

Tried Installing ZSH through cygwin and then trying to use zsh through Cmder

I tried to install Cygwin (64 bit version) on my computer, and it went through hunky-dory until at the very end, autorebase.bat failed with exit code 1. I read through the logs and they weren't too ...
0
votes
0answers
17 views

Command fails in a script?

I'm trying to script the OpenSSL ec command. The script is used to validate a collection of keys produced by another library. The script is shown below after the question. The following works from a ...
0
votes
3answers
26 views

Redirect stdin to stdout

I've got a script, ex myscript.sh, and it has to redirect to stdout what it gets from stdin (like a cat). For example: myscript.sh < myfile.txt > myfile2.txt How to do this? Also, how can i ...
0
votes
0answers
10 views

GNU screen command on path not found

When I use GNU screen in the following way, it works: screen java -jar .... but why does screen bukkit .... not work when bukkit is a executable script from my path ($PATH)? I've read here, ...
0
votes
1answer
46 views

split a file by a line prefix

My data looks like this: 60 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 61 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 62 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 62 ...
0
votes
0answers
27 views

CLI tools/ways for dynamically constructed DOM structure parsing HTML Javascript

I'm planning to make a tool which recognizes HTML using DOM structure in CLI. As many sites produce many DOM elements using JavaScript these days, it's becoming difficult to extract information from ...
-1
votes
0answers
29 views

Why Ii obtain this error when I try to compile and install a software on Ubuntu 14.04?

I am not yet a Linux guy and I am going crazy trying to install a software compiling it on Ubuntu 14.04. This are the only provided instruction to install it: Debian First, make sure that ...
1
vote
2answers
38 views

Execute a previous command in a shell and get the command directly after

Once, a colleague of mine shown me a very useful method (shortcut?) on a shell (bash? csh?) to, after executing a previous command, automatically show the command after in history. For example, ...
0
votes
1answer
24 views

Is there a way to eliminate the owner and group from `ls -l`?

I never need to see the owner and group for the files listed with ls -l (actually, ls -laF) and am wondering if there's a way to remove them from the output. So I want to change this: lrwxr-xr-x 1 ...
0
votes
0answers
32 views

Open pwd protected http stream in vlc from Linux CLI

Can anyone please advise me on how to open a pwd protected http stream from CLI in vlc? I checked out the --help and man pages, but they seem to offer only syntax for opening ftp, rmt and smb pwd ...
2
votes
2answers
68 views

How can I execute a command and immediately quit the terminal?

It should be pretty clear what I'm trying to do: original script.sh: select blah in foo bar oof rab do cmd $blah break done Pretty basic stuff. The problem arises when I try the following: ...
-1
votes
1answer
23 views

how to escape '$' in an awk statement in shell alias

I'm trying to write an alias that will kill all running php processes.. this is the command i got in my ~/.bash_profile alias killphp="ps aux | g [p]hp | awk '{print $3}' | xargs kill -9" this ...
0
votes
1answer
33 views

How can I do a recursive find and replace from the command shell?

Using a shell like bash or zshell, how can I do a recursive 'find and replace'? In other words, I want to replace every occurrence of '/path/to/folder' with '/other/dir' in all files in this directory ...
1
vote
1answer
23 views

redirect one bash line to stdout/terminal vs log

I have a bash script where I'm redirecting output into a file for logging. if test -t 1; then # stdout is a terminal exec > $OUTPUT_FILE 2>&1 else # stdout is not a terminal, no ...
0
votes
0answers
26 views

running programs from MSYS with quotes

I'm trying to execute non-MSYS program from within MSYS. But MSYS (bash) doesn't work as expected. I'm running commands and see what procmon has to say about command line passed: >cmd /c ""cmd" /c ...
0
votes
1answer
34 views

pass filename(with space in the path) as argumant to a wine app in a bash script

I want to luanch an wine App with passing a file as argument. I've two file, with the first I don't have any problem but when there is a space in the path wine can't handle the address properly. here ...
0
votes
1answer
38 views

Directories will list, but are not recognize by cd

New to terminal and having problems out of the gate. Using Terminal 2.1.2 on a Mac running 10.6.8. Using the "ls Documents" will list the contents, but when I try to change directories, which I tried ...
0
votes
0answers
22 views

How to run --args AFTER Google Chrome is already open

How do run --args after Google chrome is already open? open -a Google\ Chrome --args --"profile-directory"="Profile 1" ONLY works when Google chrome is not running and I would like to know how to ...
0
votes
1answer
24 views

Change value in config without opening

Is it possible to change/uncomment value in linux configs without opening and go to line? Example: In php.ini we had expose_php = On and we want turn it off: $: magic_cmd "expose_php = Off"
1
vote
1answer
21 views

Pipeing lines to repeat commands

If my grep operation returns a list of ID's like: 12345 84758 49549 .. can I somehow feed/pipe each line to a commandline command's parameter? Like for example with the above result from grep, I'd ...
1
vote
0answers
30 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 ...
0
votes
2answers
33 views

Is there a unix command to output time elapsed during a command?

I love using time to find out how long a command took to execute but when dealing with commands that execute sub-commands internally (and provide output that allows you to tell when each of those ...
-2
votes
3answers
68 views

osx bash grep - finding search terms in a large file with one single line

Is there simple unix command line i can enter which lets me isolate say 512 bytes either side of a search term, even if there is only one "line" in a very large text file? Ok, this should be easy. ...
2
votes
3answers
180 views

What exactly do the sudo -s command? and how is it used in this example?

I have the following doubt. In a tutorial related to a software installation that I am following say that I have to execute the following commands (I am doing it into an ssh shell, so this list of ...
0
votes
0answers
34 views

Why is there a bash process running in my Terminal if I use Zsh?

When I run the "top" command on OSX Mavericks, a bash process appears even though I am using Zsh, why?
1
vote
0answers
28 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 ...
0
votes
1answer
26 views

bash scripting, run commands in all subfolders with selections

I need to run this command trjconv -s run.tpr -f run.xtc -pbc mol -ur compact -o unwrap for all the sub-directories following the naming pattern of us_0.0, us_-0.2, us_-0.4 ... us_-3.8. The ...
1
vote
2answers
58 views

Replacing every 10th pipe with new line in unix

Lets say I have fields: name, number, id I have a data file: name1|number1|id1|name2|number2|id2...etc I want to replace every 3rd pipe with a new line or '\n' so I get: name1|number1|id1 ...
0
votes
1answer
65 views

Delete file if number in filename less than xxxx

I have thousands files in format randomstring_XXXXXXXX.jpg where 'xxx' is unixtime (1388415305). Now I need to delete all files older than some (unixtime) date. Does anyone have a solution for this?
0
votes
0answers
48 views

How to parse pipe with multiple commands independently?

How can I parse output of a single command by multiple commands without truncating at each step? For example ls -al|grep -i something will pass every line that has "something" in it to the next ...
1
vote
2answers
48 views

How do I run commands in a script as another user?

I have a need to have a single script run the majority of its commands as another user, but do not want to instruct my users to call it via sudo. Running the commands with an EOF here document is not ...
1
vote
1answer
96 views

Open Google Chrome Specific Profile From Command Line Mac

I have been trying to open Google Chrome from command line but with no luck! I have tried How do I start Chrome using a specified "user profile"? My goal is to open Google Chrome with a ...
0
votes
2answers
65 views

Setting node path and allowing to run as sudo

I've got a raspberry pi that I'm running node on. I followed this guide http://joshondesign.com/2013/10/23/noderpi to install node. When I setup the NODE_JS_HOME, I can run node from the command ...
1
vote
2answers
221 views

How can I “grep” recursively filtering the name of the files I want with wildcards?

When I want to perform a recursive grep search in the current directory, I usually do: grep -ir "string" . But that command searches inside all kinds of files, including binary files (pictures, ...
2
votes
1answer
71 views

Bash Command line Editing [closed]

I have two questions. Q1. I read a article http://www.thegeekstuff.com/2014/05/linux-keybindings/comment-page-1/#comment-1750752 in this cntrl+/ works perfectly fine for redoing the last undone edit ...
1
vote
2answers
47 views

Function that interpretes trailing 'n' characters of a word as argument

Is there a way to pass the trailing n characters of a command to a function, so that it executes it as two commands? For example I define my function as abcx and whenever I enter abcxfoo to the ...
8
votes
5answers
1k views

What does the linux pipe symbol “|” do? [duplicate]

Here is a command that sorts files in a folder in reverse order ls | sort -r What does the | symbol in that command do? What I'm really looking for here is high level (easy to understand) ...
0
votes
1answer
57 views

Imagemagick text to file batch

I want to convert text to images, but the text varies. I would like to make this a batch job. This is my first stab at the problem: #!/bin/bash COUNT=$(ls -f *.jpg *.png *.gif | wc -l) for f in $( ...
1
vote
1answer
86 views

How to execute a php file from a bash file?

My goal is to make a script that I can execute through a cron job. The script needs to find several killstat.php files in multiple directories and execute them. This is what I have so far: ...
0
votes
1answer
31 views

How to use find to fill in variable in Shell script

I am making simple Shell script form some boring-ever-repeating job. Script changes directory correctly, and now I want to run other scripts based on argument I typed when running script. Other ...
1
vote
3answers
45 views

Invalid Argument when moving items to new directory. Command works anyway

Here are the steps I took: cd ~ nano .bash_profile alias dtcl='cd ~/Desktop; mv * Desktop\ Cleanup' Ctrl - X Y Save If I run dtcl, it totally works. It moves everything ...
0
votes
0answers
99 views

Getting a batch file to run windows 7 psr tool

I'm trying to run the Windows 7 problem steps recorder tool on a remote computer using screenconnect. Screenconnect allows you to quick launch files remotely, so I'm using batch files. The goal is to ...
1
vote
1answer
65 views

Can't find clogin command for rancid

I'm new to CentOS and setting up Rancid (only used rancid, but new set it up). I've having an issue were I type clogin as my rancid user, however i get command not found ...
0
votes
2answers
40 views

Bash: What does echo xy >| foo do?

The kernel mttr documentation gives this command: echo "base=0xf8000000 size=0x400000 type=write-combining" >| /proc/mtrr While I know what > and | do, I have never seen them in combination. ...
6
votes
5answers
595 views

How to write a script that accepts input from a file or from stdin?

How can one write a script that accept input from either a filename argument or from stdin? for instance, you could use less this way. one can execute less filename and equivalently cat filename | ...
1
vote
1answer
29 views

Strange probs with popd and pushd

Just when I thought I got popd and pushd, when I tried to practice on my own...it all went to hell. I removed the temp directory.I verified this by going through Finder. Then I made a new set of ...
0
votes
2answers
51 views

Please help me visualize popd and pushd

I'm working through The Command Line Crash Course. I've been doing really well, but now find myself completely stumped at popd and pushd. I've read the analogy of a stack of plates or pancakes. I ...
0
votes
2answers
27 views

File sorting confusion

Q1. I have a command and I'm confused why it's sorting the filesizes by Kilobytes then Megabytes? $ find ~ -maxdepth 1 -size +1024c -type f -exec du -h {} \; | sort -nr 80K /home/sl6/S3401636/Lab 4- ...