Drezil/Bash-Oneliner
1
0
Fork 0
mirror of https://github.com/onceupon/Bash-Oneliner.git synced 2024-10-22 16:46:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

edit introduction, rearrange commands

Browse Source
This commit is contained in:
Bonnie I-Man Ng 2019-10-20 00:15:38 +08:00 committed by GitHub
parent ca02a5bccd
commit e4d4083a27
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 20 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
README.md
View File

@ -1,5 +1,5 @@
# Bash-Oneliner
I am glad that you are here! I was working on bioinformatics a few years ago and was amazed by those single-word bash commands which are much faster than my dull scripts, time saved through learning command-line shortcuts and scripting. Recent years I am working on cloud computing and I keep recording those useful commands here. Not all of them is oneliner, but i put effort on making them brief and swift. I am mainly using Ubuntu, RedHat and Linux Mint and CentOS, sorry if the commands don't work on your system.
I am glad that you are here! I was working on bioinformatics a few years ago and was amazed by those single-word bash commands which are much faster than my dull scripts, time saved through learning command-line shortcuts and scripting. Recent years I am working on cloud computing and I keep recording those useful commands here. Not all of them is oneliner, but i put effort on making them brief and swift. I am mainly using Ubuntu, RedHat and Linux Mint, Mac and CentOS, sorry if the commands don't work on your system.
This blog will focus on simple bash commands for parsing data and Linux system maintenance that i acquired from work and LPIC exam. I apologize that there are no detailed citation for all the commands, but they are probably from dear Google and Stackoverflow.
@ -2289,6 +2289,25 @@ paste fileA fileB fileC
# default tab separate
```
##### Group/combine rows into one row
```bash
# e.g.
# AAAA
# BBBB
# CCCC
# DDDD
cat filename|paste - -
# AAAABBBB
# CCCCDDDD
cat filename|paste - - - -
# AAAABBBBCCCCDDDD
```
##### Fastq to fasta (fastq and fasta are common file formats for bioinformatics sequence data)
```bash
cat file.fastq | paste - - - - | sed 's/^@/>/g'| cut -f1-2 | tr '\t' '\n' >file.fa
```
##### Reverse string
```bash
echo 12345| rev
@ -2628,24 +2647,6 @@ echo $?
head -c 50 file
```
##### Group/combine rows into one row
```bash
# e.g.
# AAAA
# BBBB
# CCCC
# DDDD
cat filename|paste - -
# AAAABBBB
# CCCCDDDD
cat filename|paste - - - -
# AAAABBBBCCCCDDDD
```
##### Fastq to fasta
```bash
cat file.fastq | paste - - - - | sed 's/^@/>/g'| cut -f1-2 | tr '\t' '\n' >file.fa
```
##### Cut and get last column
```bash
cat file|rev | cut -d/ -f1 | rev