Being a developer, I hardly ever use Unix/Linux. However,every now and then I need to do work on Linux. Instead of keep searching internet or bug my friendly colleagues, I think it is a better idea to list out Linux commands below. So here goes (I will keep updating as I come across more)...
- remove directory /files.
- rm -fr *.*
- f flag will force remove (and not interactively ask whether you need to remove or not)
- r flag will allows for recursively deleting all files and directories
- note: if there is a need to ask before deleting any file, then use i flag
- How to find ip address in Linux?
- ifconfig will print the ip address
- note: if the above command returns "not found", then, use /sbin/ifconfig
- How to find Disk Usage: Link to baobob: Linux Disk usage analysis and cleanup tools
- How to find out where "java" or any other file installed (its complete path)?
- the command whereis java will list the complete path
- How to execute .bash_profile after changes?
- . ./.bash_profile (there should be a space between the first dot and the second one)
- create alias for commands
- alias cls=`clear tput`
- How to count number of files in a directory?
- file . -type f wc -l
- How to display present working directory in the prompt?
- In bash shell, set PS1=`\w` (I also add a colon ":" and a greater than symbol ">" at the end like this: PS1=`\w :>` for further references goto everything.com
- Vi Commands
- How to display filename while working inside vi?
Type Ctrl+G - How to display line numbers?
Press ':' and type set number - How to display mode we are working on (APPEND or OPEN...)?
Press ':' and type set showmode
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