It contains all the Unix Terminal Commands
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date
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Show system date
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uptime
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Show uptime
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uname -a
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Show system and kernel
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whoami
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Show your username
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finger user
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Display information about user
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cat /proc/cpuinfo
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Cpu information
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cat /proc/meminfo
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Memory information
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head -n1 /etc/issue
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Show distribution
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mount
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Show mounted filesystems
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man command
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Show manual for command
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export NAME=value
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Set $NAME to value
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$PATH
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Executable search path
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$HOME
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Home Directory
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$SHELL
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Current Shell
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-a
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Show all (including hidden)
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-R
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Recursive list
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-r
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Reverse order
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-t
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Sort by last modified
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-S
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Sort by file size
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-l
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Long listing format
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-1
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One file per line
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-m
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Comma-separated output
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-Q
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Quoted output
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ssh user@host
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Connect to host as user
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ssh -p port user@host
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Connect to host on port as user
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ssh-copy-id user@host
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Add your key to host for user to enable a keyed or passwordless login
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ps
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Show snapshot of processes
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top
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Show real time processes
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kill pid
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Kill process with id pid
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pkill name
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Kill process with name name
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killall name
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Kill all processes with names beginning with name
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fg
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Brings the most recent job to foreground
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fg -n
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Brings job n to the foreground
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cmd < file
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Input of cmd from file
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cmd < (cmd2)
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Output of cmd2 as file input to cmd1
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cmd > file
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Standard output (stdout) of cmd to file
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cmd > /dev/null
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Discard stdout of cmd
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cmd > > file
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Append stdout to file
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cmd2 > file
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Error output (stderr) of cmd to file
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cmd1 > &2
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stdout to same place as stderr
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cmd2 > &1
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stderr to same place as stdout
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cmd &> file
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Every output of cmd to file
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CTRL-c
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Stop current command
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CTRL-z
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Sleep program
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CTRL-a
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Go to start of line
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CTRL-e
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Go to end of line
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CTRL-u
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Cut from start of line
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CTRL-k
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Cut to end of line
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CTRL-r
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Search history
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!!
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Repeat last command
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!abc
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Run last command starting with abc
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!abcp
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Print last command starting with abc
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!$
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Last argument of previous command
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ALT-.
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Last argument of previous command
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!*
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All arguments of previous command
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abc123
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Run previous command, replacing abc with 123
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pwd
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Show current directory
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mkdir dir
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Make directory dir
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cd dir
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Change directory to dir
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cd ..
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Go up a directory
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ls
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List files
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ls -al
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Formatted listing with hidden files
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rm file
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Delete file
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cp file1 file2
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Copy file1 to file2
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cp -r dir1 dir2
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Copy dir1 to dir2; create dir2 if it doesn't exist
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mv file1 file2
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Rename or move file1 to file2 if file2 is an existing directory, moves file1 into directory file2
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touch
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Create or update file
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cat
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View file contents
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more
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Output the contents of file
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head
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Output the first 10 lines of file
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tail
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Output the last 10 lines of file
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tail -f
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Output the contents of file as it grows, starting with the last 10 lines
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grep pattern files
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Search for pattern in files
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grep -r pattern dir
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Search recursively for pattern in dir
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grep -i
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Case insensitive search
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grep -r
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Recursive search
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grep -v
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Inverted search
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grep -o
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Show matched part of file only
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locate file
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Find all instances of file
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find /dir/ -user name
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Find files owned by name in dir
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find /dir/ -mmin num
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Find files modified less than num minutes ago in dir
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whereis command
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Find binary / source / manual for command
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chmod 775 file
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Change mode of file to 775
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chmod -R 600 folder
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Recursively chmod folder to 600
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chown user.group file
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Change file owner to user and group to group
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First digit is owner permission, second is group and third is everyone.
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Calculate permission digits by adding numbers below.
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4
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read (r)
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2
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write (w)
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1
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execute (x)
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ping host
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Ping host and output results
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whois domain
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Get whois information for domain
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dig domain
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Get DNS information for domain
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dig -x host
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Reverse lookup host
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wget file
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Download file
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wget -c file
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Continue a stopped download
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Files
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CTRL-R
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Read file
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CTRL-O
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Save file
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CTRL-X
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Close file
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Cut and Paste
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ALT-A
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Start marking text
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CTRL-K
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Cut marked text or line
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CTRL-U
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Paste text
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Navigate File
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ALT-/
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End of file
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CTRL-A
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Beginning of line
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CTRL-E
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End of line
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CTRL-C
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Show line number
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CTRL-_
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Go to line number
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Search File
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CTRL-W
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Find
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ALT-W
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Find next
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CTRL-\
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Search and replace
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Cheatography n. The art of mapping complex subjects into clear, instantly navigable reference guides.
