Questions tagged [assignment]

Question 1

Can anyone explain what's going on with DR here? user@host:~# DRYRUN=true user@host:~# echo "$DRYRUN" true user@host:~# $DRYRUN && export DR="-n" user@host:~# echo $DR user@...

Question 2

In the Bash manual, it is written about the tilde expansion: Each variable assignment is checked for unquoted tilde-prefixes immediately following a ‘:’ or the first ‘=’. Read the Bash manual about ...

Question 3

The problem is as follows (Here I don't use find since it doesn't support double-asterisk wildcard **): $ FILES=(foo/**/*.suffix bar/**/*.suffix2) $ grep baz "${FILES[@]}" # works # I use ...

Question 4

How to have Zsh string variable containing multi words separated by space be assigned to an array so that each word is the array element s='run help behind me' a=($s) m=${a[0]} n=${a[1]} print "m=...

Question 5

I need to parse through a directory that contains files and subdirectories however I am unable to use the find command. The for loop is supposed to go through each file and compare it to another ...

Question 6

Are x=$y and x="$y" always equivalent? Didn't know how to search for this. So far, I've always been using x="$y" to be "on the safe side". But I used x=$1 at one point ...

Question 7

I know the existence of while-do-done. Alternatively, I know that I can use for-do-done. But, I was trying to test manually using if-then-else. I would to like to execute a command, but doing a shift ...

Question 8

After iterating thru the shell arguments and filtering out unwanted arguments into an array, I want to assign the array back to $*. For example, in the below script, I want to remove the arguments -f ...

Question 9

I am using RHEL 7.9. This version of RHEL I use nmcli and nmtui to configure network connections. Problem: NetworkManager service appears to be filling up journalctl logs with the following output Apr ...

Question 10

The second line of the script only works if I trigger glob expansion by executing echo. I can't understand why. Here's the command and it's execution to give some context. Function definition: ~/ cat ~...

Question 11

The question is "Your current directory is cambridge. Move to your home directory using a relative pathname (don't use cd by itself for this move)" but I cannot for the life of me figure it ...

Question 12

I'm not a BASH programmer and whenever I have to create scripts it's a lottery for me, so apologies if my script looks too redudant or written by a newbie. As a foreword I have many screen snapshots ...

Question 13

In bash programming I've always defined conditional variables in the following long hand way dog=1 if [[ $dog -eq 1 ]] ; then cow=1 else cow=0 fi This is obviously incredibly inefficient. In ...

Question 14

I know that the SHELL allows variable assignment to take place immediately before a command, such that IFS=":" read a b c d <<< "$here_string" works... What I was ...

Question 15

I am pretty unexperienced (to put it mildly) when it comes to BASH and Shell scripting, so bear with me: $ toda=$(date) | echo $toda gives me: Fr 29 Mai 2020 15:25:19 CEST. So far so good. datediff ...

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Questions tagged [assignment]

bash conditional variable assignment cli not what I expected [duplicate]

Need working examples of using tilde expansion immediately following the : (colon) sign in variable assignment

variable assignment doesn't create one same object at least for grep

Zsh string variable containing multi words must be assigned to an array

How to iterate over a directory for files without including sub-directories in Bash

In POSIX scripting, is x=$y always equivalent to x="$y"?

Grouping commands of if...then statement, including assignation of variable for shell/bash in a single line

Assigning $* in shell script from args array

Completely disable NetworkManager from using DHCP client?

why is zsh not expanding this glob defined inside a function '(:a)'

How to move home using relative path [closed]

Variable assignment echo $VAR in subshell is a good method or not? (Nested bash functions)

one line definition of a variable conditional on the output of a logical test

changing IFS temporarily before a for loop [duplicate]

Result of a command is not assigned to a variable

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