Recent questions tagged Bash

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With extglob on, I want to match a variable against *( )x* (In regex: /^ *x.*/) This: main(){ shopt ... -s extglob command need to be outside? 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 - Automate Heroku CLI login

I'm developing a bash script to automatic clone some projects and another task in dev VM's, but we have one ... Exist any way similar to it? See Question&Answers more detail:os...

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

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705 views

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bash recursive xtrace

Is there any way to run bash script X so that if X call executable bash script Y then Y starts by 'sh -eux'? X.sh ... sh Y.sh: #!/bin/sh echo OK See Question&Answers more detail:os...

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

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764 views

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bash - sort logfile by timestamp on linux command line

I have a logfile with entries like: ... freeswitch.log:2011-09-08 12:21:07.282236 [ERR] ftdm_queue.c: ... the timestamp in each row decending? 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 - using jq to assign multiple output variables

I am trying to use jq to parse information from the TVDB api. I need to pull a couple of fields and assign the ... do what I am trying to do? 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 - Loop over set of strings containing spaces

I have multiple strings like "a b", "c d", "foo bar" and so on. I want to loop over this set of string and perform ... the set "a b" and "c d". See Question&Answers more detail:os...

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

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724 views

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bash - Redirect outputs of multiple commands to a file

I'm running multiple commands in my Linux shell at the same time, e.g. echo "Line of text 1" && echo "Line ... seems bulky. How can I do 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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806 views

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bash - How to fix Makefile syntax error when using wildcard on make clean?

I have a simple Makefile that just contains this one target. It looks like this: SHELL:=/bin/bash clean: rm !( ... what I'm 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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942 views

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bash - Adding XML element in XML file using sed command in shell script

I am using sed command to insert an xml element into the existing xml file. I have xml file as <Students> ... Does anyone know why this error? See Question&Answers more detail:os...

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

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690 views

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bash - Delete all comments in a file using sed

How would you delete all comments using sed from a file(defined with #) with respect to '#' being in a ... lot except for the string portion. See Question&Answers more detail:os...

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

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717 views

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bash - Add at the end of the line with sed

given a plain text document with several lines like: c48 7.587 7.39 c49 7.508 7.345983 c50 5.8 7. ... tutorial or table for this cases? 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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658 views

1 answer

bash - What is an efficient way to replace list of strings with another list in Unix file?

Suppose I have two lists of strings (list A and list B) with the exact same number of entries, N, in each list ... to "sed s/stringA/stringB/g". 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

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bash - in variable in heredoc

Is there any way to for a Bash heredoc to interpret ' ' in a heredoc? I have an iteratively built ... my initial string somehow otherwise? See Question&Answers more detail:os...

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

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771 views

1 answer

bash - Running a simple shell script as a cronjob

I have a very simple shell script I need to run as a cronjob but I can't get even the test scripts to run ... .txt work but it wont run scripts. 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 - printf command inside a script returns "invalid number"

I can't get printf to print a variable with the %e descriptor in a bash script. It would just say #!/bin/bash a ... ="en_US.UTF-8" won't work. See Question&Answers more detail:os...

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

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798 views

1 answer

bash - Redirector "<<<" in Ubuntu?

I'm getting this error Syntax error: redirection unexpected in the line: if grep -q "^127.0.0." <<< "$RESULT" How I can run this in Ubuntu? See Question&Answers more detail:os...

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

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680 views

1 answer

bash - Shell script to append text to each file?

I have a folder full of text files. I need to append the same block of text to each of them (and ... a Bash expert. Any suggestions appreciated. See Question&Answers more detail:os...

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

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832 views

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bash - how to "source" file into python script

I have a text file /etc/default/foo which contains one line: FOO="/path/to/foo" In my python script, I need ... do in bash? . /etc/default/foo See Question&Answers more detail:os...

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

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831 views

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bash - How to count number of words from String using shell

I want to count number of words from a String using Shell. Suppose the String is: input="Count from this String" Here ... 4. How can I do 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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731 views

1 answer

bash - Git sh.exe process forking issue on windows XP, slow?

Git is essential to my workflow. I run MSYS Git on Windows XP on my quad core machine with 3GB of RAM, and ... s to run git status or cd. See Question&Answers more detail:os...

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

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877 views

1 answer

bash - Git config alias escaping

I'm trying to write a git alias that removes from the commit messages the string "[ci skip]" (placed at the ... commads. How can I 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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951 views

1 answer

bash shell script two variables in for loop

I am new to shell scripting. so kindly bear with me if my doubt is too silly. I have png images in 2 ... do run_black.sh $i $j done 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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695 views

1 answer

bash - git stderr output can't pipe

I'm writing a graphical URI handler for git:// links with bash and zenity, and I'm using a zenity 'text-info' ... > /tmp/githandler-fifo 2>&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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826 views

1 answer

bash - join two csv files with key value

I have two csv files, I want to join them using a key value, the column of the city. One csv file, d01.csv ... ..how can I order the key value? See Question&Answers more detail:os...

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

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989 views

1 answer

bash - Handling exit code returned by python in shell script

I am calling a python script from within a shell script. The python script returns error codes in case of ... and exit it when necessary? See Question&Answers more detail:os...

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

0 votes

773 views

1 answer

bash - Quoting vs not quoting the variable on the RHS of a variable assignment

In shell scripting, what is the difference between these two when assigning one variable to another: a=$b and a=" ... I use one over the other? See Question&Answers more detail:os...

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

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826 views

1 answer

bash - How to run Java from Cygwin

I'm trying to write a BASH script to get my Java program to run(common issue, right?). I just can't quite ... cannot be found!(( Any ideas? See Question&Answers more detail:os...

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

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746 views

1 answer

bash - git: empty arguments in post-receive hook

I'm writing post-receive hook basing on the post-receive-email script from the contrib dir, but it seems that ... gitolite if it does matter) See Question&Answers more detail:os...

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

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