This is a short post on how to password protect a file using 7z in Linux from the terminal.
Below is the sample command that encrypts file “file.txt” with password (Replace PASSWORD with your pass) and saves to encrypted zip file Protected.zip
7z a Protected.zip -pPASSWORD file.txt
Credits/References:
Lets say we have a file with list of IPs that are space separated and you want to read each of the values to pass to a loop to perform an operation. Here is an example file with IP Addresses separated by a space:
cat ips.txt 192.168.1.1 192.168.1.10
Now, lets say you want to loop through these IPs and run a ping command against each of them.
cat ping.sh #!/bin/bash # IFS is an internal bash variable. Here, we set its value as space. IFS=$" " # Read the file "ips.txt" and store the list of values to a variable "ips" ips="$(cat ips.txt)" # Run the following loop which will loop through each of the ips and run a ping test for ip in $ips; do ping -c 1 $ip; done # Unset the IFS variable so that it wont mess with the reset of the script unset IFS
-Running this loop, will loop through the list of IP addresses and perform a ping.
./ping.sh PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data. 64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.660 ms --- 192.168.1.1 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.660/0.660/0.660/0.000 ms PING 192.168.1.10 (192.168.1.10) 56(84) bytes of data. 64 bytes from 192.168.1.10: icmp_seq=1 ttl=64 time=0.108 ms --- 192.168.1.10 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.108/0.108/0.108/0.000 ms
Hope this helps!
Happy scripting folks! 🙂
Source/References: Link