/Shell/Bash/Bash replace beginning of string

Bash replace beginning of string

Bash replace substring

echo [string] | sed "s/[original]/[target]/g"

Source: stackoverflow.com

Bash script: replace . with :

#To replace the first occurrence of a pattern with a given string,
#use ${parameter/pattern/string}:

#!/bin/bash
firstString="I love Suzi and Marry"
secondString="Sara"
echo "${firstString/Suzi/$secondString}"    

# prints 'I love Sara and Marry'

#To replace all occurrences, use ${parameter//pattern/string}:

message='The secret code is 12345'
echo "${message//[0-9]/X}"           
# prints 'The secret code is XXXXX'


#(This is documented in the Bash Reference Manual, §3.5.3 "Shell Parameter Expansion".)

Source: stackoverflow.com

Bash replace beginning of string

$ cat shortest.sh
#! /bin/bash

filename="bash.string.txt"

echo ${filename#*.}
echo ${filename%.*}

$ ./shortest.sh
After deletion of shortest match from front: string.txt
After deletion of shortest match from back: bash.string

Source: thegeekstuff.com

Similar codes

16 votes158 views5 answers
Linux command to check running process
Shell/Bash
0 vote152 views1 answer
Error: Couldn't find that app. » » Error ID: not_found
Shell/Bash
0 vote180 views1 answer
SDepends: libgcc-s1 (>= 3.0) but it is not installable
Shell/Bash
0 vote149 views1 answer
Flush ip windows 10
Shell/Bash
0 vote143 views1 answer
Recursively delete node_modules
Shell/Bash
0 vote185 views1 answer
Apache2 ubuntu default page
Shell/Bash
0 vote158 views1 answer
Odoo 13 install
Shell/Bash
0 vote169 views1 answer
Surge flutter web
Shell/Bash
5 votes162 views3 answers
Install chromedriver linux command line
Shell/Bash
0 vote156 views2 answers
Ubuntu install geckodriver
Shell/Bash