Recent questions tagged bash

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bash - Executing a shell command from Common Lisp

How can i execute a shell (bash) command within a Common Lisp program and assign the output to a variable? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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bash - PS1 line-wrapping with colours problem

Here's my PS1 variable: PS1='u:W$(__git_ps1 "e[32m][%s]e[0m]")$ ' Works great for picking up my Git ... PS1 skills help me out to fix this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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bash - Linux process in background - "Stopped" in jobs?

I'm currently running a process with the & sign. $ example & However, (please note i'm a newbie to ... getting mixed info from the Internet. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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bash - Continue looping over submodules with the "git submodule foreach" command after a non-zero exit

I have a project that contains many submodules. I want to loop over each submodule with the following command: ... on how to accomplish this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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bash - AWK variable issue

The variable in awk does not return the result. I am trying to get the next line of the matched value from file by ... ---------> No result See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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bash - How can I iterate over .log files, process them through awk, and replace with output files with different extensions?

Let's say that we have multiple .log files on the prod unix machine(Sunos) in a directory: For example: ... Any help could be extremely useful. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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bash - Accessing environment variables that don't map to valid shell variable names

I'm trying to figure out how to sanely and portably (as much as possible) deal with environment variables with ... it returns an empty string. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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950 views

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bash - Read from two files line by line and process them simultaneously

Hello everyone I'm very new to the game so my question is probably rather simple but I'm stuck at this ... variables out of the read operation. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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bash - Can't match regex with sed

I'm trying to match a pattern (^|~?)(d|x|*)+.(d|x|*)+.(d|x|*)+ with sed without luck. The ... passing the -r option to utilize extended regex)? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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bash - Rename multiple files while keeping the same extension on Linux

I have 100s of files in a directory with the following naming convention. 00XYZCD042ABCDE20141002ABCDE.XML ... the file extension. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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992 views

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bash - set variable in heredoc section

I'm a shell script newbie, so I must be doing something stupid, why won't this work: #!/bin/sh myFile=$1 ... ? What am I doing wrong? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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971 views

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bash - Why does Scala use a reversed shebang (!#) instead of just setting interpreter to scala

The scala documentation shows that the way to create a scala script is like this: #!/bin/sh exec scala "$0" ... same thing, but is less verbose. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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778 views

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bash - How to separate words in a "sentence" with spaces?

Background Looking to automate creating Domains in JasperServer. Domains are a "view" of data for creating ad ... miss the point altogether. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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776 views

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bash - Copying files from a hdfs directory to another with oozie distcp-action

My actions start_fair_usage ends with status okey, but test_copy returns Main class [org.apache.oozie.action.hadoop. ... } echo ${paths} See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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bash - Spinner Animation and echo command

This is a part of my bash file. The output I need is: [ - ] Copyright of KatworX? Tech. ... Debugged by the ☆Stack Overflow Community☆" See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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962 views

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bash - Extracing IP addresses as whole words with POSIX BRE/ERE regex

I am trying to match IP addresses found in the output of traceroute by means of a regex. I'm not trying to ... get nothing. What am I missing? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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936 views

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bash - How do I make a plot in gnuplot with the lowest value automatically subtracted from the y data?

I am plotting the creation times of a large batch of files in gnuplot to see if they are created linearly in time ... ($1-$1[firstelement])` ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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809 views

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bash - git scripting: How to list all git branches containing a commit

I can list all branches containing a certain commit using git branch --list --contains just fine. But as ... that contain a certain commit. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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bash - Can a shell script delete or overwrite itself?

#beginning of bashscript1.sh source bashscript2.sh echo $variable and here is the source file: #beginning of bashscript2. ... in bash script 1? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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bash - Integer expression expected error in shell script

I'm a newbie to shell scripts so I have a question. What Im doing wrong in this code? #!/bin/bash echo " ... I hope you guys can understand me. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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870 views

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bash - Parsing the first column of a csv file to a new file

Operating System: OSX Method: From the command line, so using sed, cut, gawk, although preferably no installing ... to read line by line. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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873 views

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bash - How to speed up Cygwin?

I have been running drush scripts (for Drupal) with Cygwin on my relatively fast windows machine, but I still have ... and/or CPU per terminal? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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bash - Replace " " with newline in awk

I'm tailing logs and they output instead of newlines. I thought I'd pipe the tail to awk and do a simple replace ... fine in e.g. Sublime Text: See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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bash script execute commands after ssh

I am trying to execute a few commands via my first script but it's not working. #!/bin/bash #connect to ... is working nicely. Using CentOS 7. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

bash - How to check if docker daemon is running?

I am trying to create a bash utility script to check if a docker daemon is running in my server. Is ... this utility on my own environment. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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866 views

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bash - Is it necessary to specify traps other than EXIT?

I see a lot of shell scripts that do: trap cmd 0 1 2 3 13 15 # EXIT HUP INT QUIT PIPE TERM In ... require the other signals to be specified? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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837 views

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bash - Test if a directory is writable by a given UID?

We can test if a directory is writable by the uid of the current process: if [ -w $directory ] ; then echo ... of my script has su privilege. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

bash - Pipes in a Git alias?

I work on feature branches that have annoying big names, so I often end up grepping my current branch name ... to achieve the desired alias? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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