只需要记录一行,seq[name]=$0 # 对于多好fasta文件,需要把每一行序列都加到前面的序列上,seq[name]=seq[name]$0 ct@ehbio:~$ awk 'BEGIN{OFS=FS="\t"}{if($0~/>/) {name=$0; sub(">", "", name);} else seq[name]=seq[name]$0;...
This script first checks if the directory "workarea" exists using the -d option with the "if " statement. If the directory exists, it uses the "mv" command to move "workarea" to a new location named "new_workarea". Afterward, it checks the exit status of the "mv" command to deter...
existsif[!-d"$destination_directory"];thenecho"Destination directory does not exist"exit1fi# Copy or move all files from the source directory to the destination directory# uncomment one of these lines depending on whether you want to copy or move the files# Copy all files from the source ...
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，则进入循环，执行命令区域，否则 不进入循环，介绍while 命令 行3，执行命令区域，这些命令中，...
if [[ -f $lockfile ]]; then# The file exists so read the PID to see if it is still runninglock_pid=$(head -n 1 $lockfile)if [[ -z $(ps -p $lock_pid|grep $lock_pid) ]]; thenif [[ $quit_flag == no ]]; then# The process is not running, echo current PID into lock...
For example, if we need to move all .bash files into the script folder and then give them execute permissions, our script would look like this:#!/bin/bash for FILE in $HOME/*.bash; do mv "$FILE" "${HOME}/scripts" chmod +x "${HOME}/scripts/${FILE}" done...
for file in test[1-8].sh#for将读取test1-test8,后缀为.sh的文件 do if [ -f $file ]#判断文件在当前目录是否存在。 then echo "$file exists." fi done CTRL+D /> . ./test9.sh test2.sh exists. test3.sh exists. test4.sh exists. ...
echo -n "Enter File Name : " read fileName if [ ! -f $fileName ]; then echo "Filename $fileName does not exists" exit 1 fi tr '[A-Z]' '[a-z]' < $fileName >> small.txt This above script can convert the case of a file of any length with a single click fromuppercaseto...
Then select theTabkey. What happens? You should see the rest of the word "azure/" appear in your command: BashCopy cat .azure/ Keep typing the beginnings of words and usingTabto autocomplete. Keep in mind that if there's an ambiguity, Bash won't fill in anything. You can selectTabtw...