Drezil/Bash-Oneliner
1
0
Fork 0
mirror of https://github.com/onceupon/Bash-Oneliner.git synced 2024-11-25 22:07:01 +00:00
Code Issues Packages Projects Releases Wiki Activity

Variable substitution changes

Browse Source 
Clarify documentation and give a few more examples
This commit is contained in:
Jackson Bailey 2022-05-04 15:58:25 -04:00 committed by GitHub
parent c2b96736bd
commit dc268515b7
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 13 additions and 3 deletions
Show Stats 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