Drezil/Bash-Oneliner
1
0
Fork 0
mirror of https://github.com/onceupon/Bash-Oneliner.git synced 2025-08-21 19:33:15 +02:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #33 from JacksonBailey/patch-1

Browse Source 
Variable substitution changes
This commit is contained in:
Bonnie I-Man Ng
2022-05-08 01:30:26 +08:00
committed by GitHub
parent 18134f72c9 dc268515b7
commit 8b2e16f0c1
1 changed files with 13 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
README.md
View File

@ -135,9 +135,19 @@ $HOSTNAME current hostname
##### Variable substitution within quotes
```bash
# foo=bar
echo "'$foo'"
#'bar'
# double/single quotes around single quotes make the inner single quotes expand variables
echo $foo
# bar
echo "$foo"
# bar
# single quotes cause variables to not be expanded
echo '$foo'
# $foo
# single quotes within double quotes will not cancel expansion and will be part of the output
echo "'$foo'"
# 'bar'
# doubled single quotes act as double quotes making variables expand
echo ''$foo''
# bar
```
##### Get the length of variable
```bash