Here some useful snippets.
Here some useful snippets.
Read list of file
Read list of file
for f in *.tar.gz; do echo "Processing $f "; done
Print Date Time and name of bash file
Print Date Time and name of bash file
#/usr/bin/env bash echo "`date +%Y-%m-%d_%H:%M:%S` - $0"
Check Argument n# 1
Check Argument n# 1
The following code checks if argument 1 was missing, otherwise checks its value.
#/usr/bin/env bash p1=$1 if [ -z "$1" ]; then echo 'Missing parameter: <on> to mount <off> to unmount'; exit; elif [ $p1 != "on" ] && [ $p1 != "off" ] && [ $p1 != "offon" ]; then echo 'Wrong parameter: <on> to mount <off> to unmount'; exit; fi
Check if a folder exists
Check if a folder exists
#/usr/bin/env bash if [ ! -d /mnt/hubic/default ]; then echo "folder <default> not exists..." fi
Function inside a bash script
Function inside a bash script
# Arguments: <folder> <filetar>
function tar_backup {
folder=$1
filetar=$2
echo "Backup $folder Started on:`date +%Y-%m-%d_%H:%M:%S`"
tar -pczf $savpath/$filetar.tar.gz $folder/$file
echo "Backup $folder Finish on:`date +%Y-%m-%d_%H:%M:%S`"
}
# tar the folder /myfolder/myfiles and create the file mybackup.tar.gz
tar backup /myfolder/myfiles mybackup
File older than...
Search file older than days - Tested and To be test!
find /your/file -mtime +182 -exec rm {} +
or
find . -name "*.sess" -mtime +182
or
find . -mindepth 1 -mtime +3 -delete
TESTED
find /var/log/myfolder/* -name "*.log" -mtime +180 -delete
CD from bash script, alias, references
CD from bash script
#!/bin/bash # cdsite.sh # how to use: # . cdsite.sh # note: there is a blank space between the dot and the csite.sh cd /var/www/mysite.com/web
CD using the alias
You can use a simple alias to change directory. ~/.bash_profile and/or in ~/.bashrc
alias cdsite="cd /var/www/mysite/web"
Delete Files
DELETE FILES
Delete all file with extension html in the folder /tmp and all sub-folder
find /tmp/ -name "*.html" -type f -delete
Create index.html
Create index.html if not exists...
This script will check and create if not exists the file index.hml or index.php in all folders starting from the path specified
#!/bin/bash
# chkwebindex.sh - Check and create file index.html
#
# example: chkwebindex.sh /var/www/mysite.it/web/
#
# save and change IFS
OLDIFS=$IFS
IFS=$(echo -en "\n\b")
# try get path from param
path=""
if [ -d "$1" ]; then
path=$1;
else
path="/tmp"
fi
echo "Check and Create index.html in the folder and sub-folder: $path"
for x in `find $path -type d`
do
echo "$x"
# ./yourexecutable -i $x -o $x.processed
if [ ! -f "$x/index.html" ] && [ ! -f "$x/index.php" ]; then
echo "File index.html not exists in $x ... created!"
echo "<!DOCTYPE html><title></title>" > $x/index.html
fi
done
# restore IFS
IFS=$SAVEIFS
CHOWN All Files Owned by Root
CHOWN ALL FILES OWNED BY ROOT
Search all files owned by root and change it to another one
find /tmp -name "*.html" -user root -exec chown web1:client1 {} +
FIND SUBSTRING IN VAR USING GREP
LIST="some string with a substring you want to match" SOURCE="substring" if echo "$LIST" | grep -q "$SOURCE"; then echo "matched"; else echo "no match"; fi
more details on stack overflow
To Be continued
To Be Continued...
Stay tuned, I will add more snippets soon...
