Recent questions tagged bash

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bash - Optimize shell script for multiple sed replacements

I have a file containing a list of replacement pairs (about 100 of them) which are used by sed to replace ... 18s chthonicdaemon's method: 0.01s 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 - `msbuild` command not found, but `msbuild.exe` works fine

I run MSys/Bash as distributed in Git for Windows. I added the folder C:WindowsMicrosoft.NETFrameworkv4.0.30319 to my ... fine. What's going on? 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 - xmllint to parse a html file

I was trying to parse out text between specific tags on a mac in various html files. I was looking for ... value between the first H1 headings? 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 - Misbehaving head with redirection

In a reply to Piping a file through tail and head via tee, a strange behaviour of head has been observed in ... lines as the previous two lines? 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 - Read list of files on unix and run command

I am pretty new at shell scripting and I have been struggling all day to figure out how to perform a "for" ... things, but none of them worked. 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 - Why does ((count++)) return 1 exit code first time run

I have no idea why the indicated line below is returning 1 while the subsequent executions of ((count++)) are ... [me@server ~]$ echo $count 3 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 - List recursively all files on sftp

I'd like to write bash script to recursively list all files (with fullpaths) on sftp and interact with paths ... local shell ? Synonym for help 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 to get environment variables in live Heroku dyno

There is a heroku config command but that apparently just shows me what the current setting is. I want to ... but couldn't find anything. 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 - Commands from .bashrc not available in Emacs

I have some aliases and functions defined in ~/.bashrc. I start emacs from a terminal window using emacs -nw ... ). 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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bash coproc and leftover coproc output

I need to read some configuration data into environment variables in a bash script. The "obvious" (but incorrect) ... the return code was zero. 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 - Detect Apple Silicon from command line

How can I detect from a shell script that it is running on M1 Apple hardware? I want to be able to run a ... at least macOS Bug Sur, naturally). 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 - On writing a Linux shell script to safely detach programs from a terminal

I'm trying to write a Linux shell script (preferably bash), supposedly named detach.sh, to safely detach programs ... of the script has ended. 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 - Cannot run `source` in AWS Codebuild

I am using AWS CodeBuild along with Terraform for automated deployment of a Lambda based service. I have a very ... file in Codebuild. 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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bash - how to update the xml file using xmlstarlet

I am using windows version of xmlstarlet to update an xml file, via windows batch file. xml edit --update "/xml/table/ ... " /> </table> </xml> 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 - Logstash in Docker - config file not found when mounted though a volume

EDIT: It seems to be a boot2docker thing... works fine in an ubuntu vm running docker. I'm trying to fire up ... ", "host" => "d3fd885903dd" } 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 - Run expect command inside while loop in shell script

I have list of filenames in a text file,need to transfer each file into server using scp command.I am ... .Please suggest me any solution. 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 - Why must I source .bashrc every time I open terminal for aliases to work?

Git was working fine. I have created an alias in Git but the issue is when I tried to reopen the terminal, then ... bashrc ] && . /etc/bashrc fi See Question&Answers more detail:os...

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

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1.6k views

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bash - How to replace the nth column/field in a comma-separated string using sed/awk?

assume I have a string "1,2,3,4" Now I want to replace, e.g. the 3rd field of the string by some different ... "; print }' Thanks for your help! See Question&Answers more detail:os...

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

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1.3k views

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bash - Find and remove DOS line endings on Ubuntu

I have found that many of my files have DOS line endings. In VI they look like this: "^M". I don't want ... this using a bash script? Thanks! EV See Question&Answers more detail:os...

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

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2.3k views

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bash - read: Illegal option -d

Here is the offending part of my script: read -d '' TEXT <<'EOF' Some Multiline text that I would like ... on Ubuntu 10.10 Fixes? Workarounds? See Question&Answers more detail:os...

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

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939 views

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bash - How to define a function on one line

Often when moving files around, I need to do the opposite later. So in my .bashrc I included this working ... error near unexpected token `{mv' 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 - Start background process from .bashrc

I realize that this might be a stupid issue but I can't solve it for hours even if digged stackoverflow site and ... 's issue. Thanks for help! 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

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bash - how to pass keyboard input along to linux command?

I run a linux command that sometimes asks for user input (press 1 or 2). I always want to answer 1, how can I pass this value automatically ? See Question&Answers more detail:os...

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

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2.0k views

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bash - Syntax error : end of file unexpected (expecting "fi")

I am writing a makefile in bash and I have a target in which I try to find if a file exists and even though I ... ) make: *** [read] Error 2 See Question&Answers more detail:os...

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

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932 views

1 answer

bash - Is echo atomic when writing single lines

I am currently trying to get a script to write output from other started commands correctly into a log file. The ... cause havok in the file? See Question&Answers more detail:os...

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

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1.4k views

1 answer

bash - source .bashrc in a script not working

I am doing a script that is installing ros and after installing it, compiling a workspace with catkin_make. I found ... why. Can you explain 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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986 views

1 answer

bash - How to escape a previously unknown string in regular expression?

I need to egrep a string that isn't known before runtime and that I'll get via shell variable (shell ... pattern, eg. egrep '^myunknownstring' 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

1 answer

bash - "cannot execute binary file" when trying to run a shell script on linux

I am very new to linux and shell scriprting. I am trying to run a shellscript from secure shell (ssh) ... I can try executing the shellscript. See Question&Answers more detail:os...

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

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