Unix Command-Line Cheat Sheet BTI2014
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The document provides a comprehensive list of Unix command-line text handling, file system, networking, and compression commands. Each command is accompanied by a brief description of its function, such as 'ls' for listing files and 'grep' for filtering text. It includes commands for processing files, manipulating directories, and managing files across networks.
Unix Command-Line Cheat Sheet BTI2014
- 1. Text handling commandsText handling commands command > file saves STDOUT in a file command >> file appends STDOUT in a file cat file concatenate and print files cat file1 file2 > file3 merges files 1 and 2 into file3 cat *fasta > all.fasta concatenates all fasta files in the current directory head file prints first lines from a file head -n 5 file prints first five lines from a file tail file prints last lines from a file tail -n 5 file prints last five lines from a file less file view a file less -N file includes line numbers less -S file wraps long lines grep ‘pattern’ file Prints lines matching a pattern grep -c ‘pattern’ file counts lines matching a pattern cut -f 1,3 file retrieves data from selected columns in a tab-delimited file sort file sorts lines from a file sort -u file sorts and return unique lines uniq -c file filters adjacent repeated lines wc file counts lines, words and bytes paste file1 file2 concatenates the lines of input files paste -d “,” concatenates the lines of input files by commas sed transforms text File system CommandsFile system Commands ls lists directories and files ls -a lists all files including hidden files ls -lh formatted list including more data ls -t lists sorted by date pwd returns path to working directory cd dir changes directory cd .. goes to parent directory cd / goes to root directory cd goes to home directory touch file_name creates en empty file cp file file_copy copy a file cp -r copy files contained in directories rm file deletes a file rm -r dir deletes a directory and its files mv file1 file2 moves or renames a file mkdir dir_name creates a directory rmdir dir_name deletes a directory locate file_name searches a file man command shows commands manual top shows process activity df -h shows disk space info apt-get install installs applications in linux Networking CommandsNetworking Commands wget URL download a file from an URL ssh user@server connects to a server scp copy files between computers Compression commandsCompression commands gzip/zip compress a file gunzip/unzip decompress a file tar -cvf groups files tar -xvf ungroups files tar -zcvf groups and gzip files tar -zxvf gunzip and ungroups files UNIX Command-Line Cheat Sheet BTI-SGN Bioinformatics Course 2014