Chastity filter raw Illumina data (grep reads containing :N:, append (-A) the three lines after the match containing the sequence and quality info, and write a new filtered fastq file):find *fq | parallel "cat {} | grep -A 3 '^@.*[^:]*:N:[^:]*:' | grep -v '^\-\-$' ...
Chastity filter raw Illumina data (grep reads containing :N:, append (-A) the three lines after the match containing the sequence and quality info, and write a new filtered fastq file):find *fq | parallel "cat {} | grep -A 3 '^@.*[^:]*:N:[^:]*:' | grep -v '^\-\-$' ...
# find will not truncate filenames containing spaces find $DIR -type f | while read file; do # using POSIX class [:space:] to find space in the filename if [[ "$file" = *[[:space:]]* ]]; then # substitute space with "_" character and consequently rename the file mv "$file...
If grep finds the string, the first block (echo "Text files found.") is executed; if not, the else block executes. 3.1 Searching for Pattern Using grep We can use grep with -E option to search for pattern in the Output. Suppose we need to find all .txt files in a folder. In ...
printf的%q生成的输出被正确地加了引号以供shell阅读，但它通常不使用双引号。完整输出行的示例是make-...
filename A string of characters used to identify a file. job A set of processes comprising a pipeline, and any processes descended from it, that are all in the same process group. job control A mechanism by which users can selectively stop (suspend) and restart (resume) execution of proces...
Example 16 – Find and replace a string Example 17 – Check the existence of a file Example 18 – Disk status Example 19 – System uptime and current date Example 20 – Count the number of files What is shell/bash scripting? Bash scripting provides a powerful tool for automating tasks on...
printf的%q生成的输出被正确地加了引号以供shell阅读，但它通常不使用双引号。完整输出行的示例是make-...
location"# Notice that the space in the $location variable is ignored and the location argument accepts the entire string as the value In the JSON dictionary output, review the properties of the resource group that was created. Using If Then Else to determine if variable is null...
find指令后面必须有基本路径,-path后面的目录前后都要加* shell中命令之间的空格很重要,空格分隔了不同的命令,\转义的一般都用空格与其他的指令隔离 shell常用变量:命令或脚本的第一个参数...echo "line containing apattern " | sed "s/c/x/g" 将字符串的c替换成x name=${var%.}的含义是从右向...