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• • Rahul Nayak@rahul

  

  Sort FASTA sequence by length: cat f1.fasta| awk '{if($0 ~ /^>/){printf "%st", $0}else{print length($0)"t"$0}}'| sort -k2n,2| awk '{print $1"n"$3}' > sequence.fasta #Sort #Fasta #Trick #Onliner

  3185 days ago

• • Neelam Jha@neelam

  

  Contact many files: $ for a in *.txt ; do cat $a >> newFile ; done #Linux #Tricks

  2795 days ago

• • Shruti Paniwala@shruti

  

  Little correction, I guess you mean concatenate many files: $ for a in *.txt ; do cat $a >> newFile ; done #Linux #Tricks

  2794 days ago

• • Shruti Paniwala@shruti

  

  Extract values : cat seeALN.xls | grep -w "scaffold_1" to #grep #exact #matching words from file seeALN.xls

  2635 days ago

• • Shruti Paniwala@shruti

  

  Check out the OS type: $ cat /etc/*-release #Linuxv #OS

  2628 days ago

• • Jit@jit.aber

  

  #Remove a #sequence by id from multifasta: cat vaga.fa | awk '{if (substr($0,1) == ">scaffold_1 1087316 bp") censor=1; else if (substr($0,1,1) == ">") censor=0; if (censor==0) print $0}' > fixed.fasta

  2331 days ago

• • Rahul Nayak@rahul

  

  #Split #multifasta $ cat hg18.fa | awk '{ if (substr($0, 1, 1)==">") {filename=(substr($0,2) ".fa")} print $0 > filename }'

  2214 days ago

• • Rahul Nayak@rahul

  

  Get unique ids from column 1 in Linux. $ cat output_file | cut -f 1 | sort | uniq > allUniqOUT #Unique #Linux #Cut

  2135 days ago

• • Jit@jit.aber

  

  cat /etc/*-release #System #version #Linux

  2088 days ago

• • Neelam Jha@neelam

  

  Add some text at the beginning of the file $ echo -e "chrII_reverse\n$(cat chrII_reverse.fa )" > chrII_reverse.fa #Add #FirstLine #Text

  2040 days ago

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