bash4 Questions

7

Solved

My same BASH script is working in Fedora/CentOS. But I am testing one Android eee pad transformer. Where i have terminal access and i wrote a small test script. But its not working, how can i f...
Nu asked 11/11, 2011 at 13:20

9

Solved

How can I write multi-lines in a file called myconfig.conf using BASH? #!/bin/bash kernel="2.6.39"; distro="xyz"; echo <<< EOL line 1, ${kernel} line 2, line 3, ${distro} line 4 line ......
Harlin asked 24/10, 2011 at 12:23

4

Solved

I'm relatively new to bash programming and i am currently creating a simple calculator. It needs to use floating point numbers and check they are so. I have a checkNumbers function: function che...
Cockcrow asked 9/12, 2012 at 19:11

5

Solved

Based on an associative array in a Bash script, I need to iterate over it to get the key and value. #!/bin/bash declare -A array array[foo]=bar array[bar]=foo I actually don't understand how to...
Voyeurism asked 24/6, 2010 at 18:7

4

Solved

I'm trying to write a not found handle in Bash that does the following: If $1 exists and it's a directory, cd into it. If $1 exists inside a user defined directory $DEV_DIR, `cd into it. If the p...
Mowery asked 20/3, 2011 at 17:45

1

Solved

This is my $a output: [root@node1 ~]# echo "${a}" /dev/vdc1 /gfs1 /dev/vdd1 /elastic mfsmount /usr/local/flytxt I gotta store these in an associative array fsmounts with first column as ke...
Enchorial asked 7/2, 2019 at 6:9

1

Solved

In bash 4 (and above), to capitalize the first letter of a string stored in variable L1, I can do the following: L1=en Ll1=${L1^} echo $Ll1 This prints En. I'm trying to do something similar wi...
Sloatman asked 1/5, 2018 at 9:40

1

Solved

I have IDs in the first column of data.csv with headers. I want to skip the header and store column 1 values in the variable ids as 102 103 104 .... Pseudocode in the line ids.append($col1) where...
Curvature asked 30/10, 2016 at 16:49

3

How can I save the error output when running my script to a file? I have my code bellow, but the code does not track error and save the error to test.log14. Can somebody give me a hint on what coul...
Ethelstan asked 28/1, 2015 at 13:14

2

Solved

In a server with bash version 3 I do this: bash3$ e="tar xfz"; [[ "$e" =~ "^tar" ]] && echo 0 || echo 1 0 But when I execute the same command in bash version 4 bash4$ e="tar xfz"; [[ "$...
Misdoing asked 2/6, 2016 at 18:26

4

Solved

I want to direct the output of a printf in a bash script to stderr instead of stdout. I am not asking about redirecting either stderr or stdout from where ever they are currently routed. I just w...
Underexposure asked 9/6, 2012 at 18:48

5

Solved

How do i replace the \r? #!/bin/bash ... # setup if [[ $i =~ $screen ]]; then ORIGINAL=${BASH_REMATCH[1]} # original value is: 3DROTATE\r AFTER =${ORIGINAL/\\r/} # does not replace \r myThird...
Preponderance asked 17/10, 2011 at 22:42

3

Solved

This code can read all lines in the file.txt except the last line any ideas why. while read p; do echo $p done < file.txt
Miscreant asked 18/5, 2013 at 18:27

2

Solved

Are there some more Text User Interface (TUI) frameworks for bash (other than this)? : http://code.google.com/p/bashsimplecurses/ I want to take user input (data entry) process the entry
Ewald asked 24/10, 2011 at 13:1

2

Solved

I'm writing a script in bash and I want it to execute a command and to handle each line separately. for example: LINES=$(df) echo $LINES it will return all the output converting new lines with s...
Upholsterer asked 3/1, 2012 at 13:41

4

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I'm unable to get a pattern to match properly using regex in bash 4.1. I've read some information on about differences in quotes vs not quotes but I don't think that is my problem. My goal ...
Ashantiashbaugh asked 15/9, 2011 at 23:21

2

Solved

bash4 looks good on paper, and I think I'll build it and give it a test drive. In the meantime... Anyone who has done the same care to share their expierence? It would be particularly interestin...
Sender asked 12/1, 2010 at 1:51

1

Solved

I put the following unsuccessfully to my .bashrc shopt -s globstar I am trying to test the command in action by ls **/*.c and by comparing it to ls */*/*.c How can you enable globstar in B...
Fiddle asked 27/4, 2009 at 14:20
1

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