Category "bash"

How to create random pass names in ffmpeg?

Normally, when using ffmpeg, you define a name for the "pass" information to be stored in a file when enconding videos with 2 (or more) passes, e.g.: ffmpeg -i

Find patterns from one file in another file

I'm trying to find patterns from one file in another file. The pattern in file one looks something like this: ENSG00000203875.13 ENSG00000262691.1 ENSG000002549

Regex that matches comma separated list of 4 strings in bash

Im trying to write a regex function in bash where the first and third thing in the list are the same and the second and fourth thing in the list are the same. g

Awk help required

I wrote the below script to check expiry age of users on psql #!/bin/bash echo "" echo "Performing User Expiry Check" echo "" CONTAINER_ID=$(docker p

Multiple process curl command for urls to output to individual files

I am attempting to curl multiple urls in a bash command. Eventually I will be curling a large number of Urls so I am using xargs to use multiple processes to sp

How to select two files from a directory, and always every other file?

I am currently working on RNA-Seq data, and I have a directory containing the forward and the reverse sequences of a number of samples. I want to run tools such

Cross-platform method to detect whether /dev/tty is available & functional

I have a bash script from which I want to access /dev/tty, but only when it's available. When it's not available (in my case: when running my script in GitHub A

generate random number and fill them in array

i want to generate 10 random number between 1 and 100 and store them in an array #!/bin/bash for ((i=0; i<10; i++)) do done

Sort according to two columns and extract top two based on last column

I have a file with three columns. I would like to extract rows with top two values in column 3 for each unique value in column 2. cat file.list run1/xx2/x2c1.tx

pm2 deploy production setup : executing post-setup `yarn && yarn dev` bash: yarn: command not found

I'm trying to use pm2 deploy production update to serve my NextJs app on remote server. I've have already installed yarn locally and also on remote server. It s

Linux script not executing properly after a reboot

I am using a raspberry pi4 with 32bit Raspbian to display some webpages. I have a script to open 2 webpages, one on each monitor. The end of the script selects

Docker bash shell script does not catch SIGINT or SIGTERM

I have the following two files in a directory: Dockerfile FROM debian WORKDIR /app COPY start.sh /app/ CMD ["/app/start.sh"] start.sh (with permissions 755 u

Getting null values in jq bash

I have data.json which looks like this { "type": "AdaptiveCard", "body": [ { "type": "TextBlock", "text": "Monitoring", "wrap": true,

jq: command not found in GitLab CI file

In .gitlab-ci.yml stages: - test-jq test-jq: stage: test-jq image: ruby:2.5 script: - apt-get update - apt-get install

Updating SourceTree's browser.plist with non-existing repositories dynamically

I'd like to traverse some directories containing git repositories with my Bash script and add them to SourceTree's list if they don't exist already. I'd prefera

Loop through an array of strings in Bash?

I want to write a script that loops through 15 strings (array possibly?) Is that possible? Something like: for databaseName in listOfNames then # Do somethi

How to insert text after a certain string in a file with variables

I have these variables: file_path="/home/dir/file.xml" string="<host mac='0A:00:DD:D2:00:02' name='vfp-20vr' ip='10.10.1.122'/>" This is the content of f

take difference between 2nd column values using awk

I have a data file, let's call it fileA. It has two columns and I want to take difference of 2nd column and multiply the output with 13.6 and write it down in 3

Linux - How to get a string specific string from a specific line?

Lets say that I have the following DeletedFiles.txt file: test1.zip - date-removed='6-16-2021' test2.zip - date-removed='6-17-2021' test3.zip - date-remov

replace the header line of several sequences in a fasta file and replace them with the species names stored in a list (.txt)

I have a fasta file with several sequences, but the first line of all the sequences start with the same string (ABI) and I want to change and replace it with th