bash Archives - Page 6 of 36

bash, Programming

IT Nursery

Getting an “ambiguous redirect” error

The following line in my Bash script echo $AAAA" "$DDDD" "$MOL_TAG >> ${OUPUT_RESULTS} gives me this error: line 46: ${OUPUT_RESULTS}: ambiguous redirect Why? ...

May 29, 2022
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bash, Programming

IT Nursery

Copy folder recursively, excluding some folders

I am trying to write a simple bash script that will copy the entire contents of a folder including hidden files and folders ...

May 29, 2022
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bash, Programming

IT Nursery

How to pass arguments to Shell Script through docker run

I am new to the docker world. I have to invoke a shell script that takes command line arguments through a docker container. ...

May 28, 2022
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bash, Programming

IT Nursery

Generating random number between 1 and 10 in Bash Shell Script [duplicate]

This question already has answers here: Random number from a range in a Bash Script (18 answers) Closed 7 years ago. How would ...

May 28, 2022
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bash, Programming

IT Nursery

How to check the extension of a filename in a bash script?

I am writing a nightly build script in bash. Everything is fine and dandy except for one little snag: #!/bin/bash for file in ...

May 28, 2022
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bash, Programming

IT Nursery

Check Whether a User Exists

I want to create a script to check whether a user exists. I am using the logic below: # getent passwd test > ...

May 28, 2022
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bash, Programming

IT Nursery

Switch case with fallthrough?

I am looking for the correct syntax of the switch statement with fallthrough cases in Bash (ideally case-insensitive). In PHP I would program ...

May 28, 2022
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bash, Programming

IT Nursery

How to use mod operator in bash?

I’m trying a line like this: for i in {1..600}; do wget http://example.com/search/link $i % 5; done; What I’m trying to get as ...

May 28, 2022
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bash, Programming

IT Nursery

uppercase first character in a variable with bash

I want to uppercase just the first character in my string with bash. foo="bar"; //uppercase first character echo $foo; should print “Bar”; 15 ...

May 28, 2022
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bash, Programming

IT Nursery

Why start a shell command with a backslash?

\curl -L https://get.rvm.io | bash -s stable Why is the command starting with \? This is the site where I saw it. 2 ...

May 28, 2022
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