Category "shell"

timeout doesn't work with nvm: nvm no such file or directory

I want to set timeout for each instance of node.js running. but when I run the following commands I got the error timeout: failed to run command ‘nvm&rsqu

bash setting variable getting error command not found [duplicate]

I'm writing one small bash script for my Project but i getting some errors #!/bin/bash count=$(cat Downloads/datei.csv | wc -l); for((i=115;i&

different PDB files add hydrogen same time using reduce program in shell script with modified file name (1axk.pdb <---->1ackH.pdb)

I tried to run this code but its repeated the same file and ignored the other files and I want to stored all the directory files into a variable so that, read t

/usr/bin/cat: -: Bad file descriptor when using pipe()

I am recreating a complete shell. For that I must simulate "|". To do this, I have to use the dup2(), fork() and pipe() functions. here is my code : void do_pip

powershell script to select directory

I would like to create a powershell function or cmdlet that would allow me to quickly navigate to files and function like the example below. Could someone enlig

How to extract only specific strings from each line of a file using awk?

I was wondering if there a generic way to extract a specific string which by design is an eleven characters alphanumeric string using awk approach? for ex- cat

how to solve Parsing expression Lexer error yq

I am using yq for YAML processor. I got this error: Error: Parsing expression: Lexer error: could not match text starting at 1:8 failing at 1:10. unmatched text

How to stop auto-generation of log files by cron?

I have a bot on Marathi language wikipedia. The bot runs from Wikimedi's toolforge server. I have set up a cron job which generates two files: one .err and anot

To replace a immediate text after pattern match in Linux shell using sed

Content of a json file "iso_checksum": "md5:32fdf4fef4ef" I have stored value of new checksum in a variable v = "4dfv45ffdf" I want to replace the value after

Process swap usage with use ID

I've been trying to get a one liner working updated to add the user name for the processes consuming swap on the system but having a hard time getting it to wor

How to properly pass filenames with spaces with $* from xargs to sed via sh?

Disclaimer: this happens on macOS (Big Sur); more info about the context below. I have to write (almost did) a script which will replace images URLs in big text

Git diff command from shell script

I have a script: #!/bin/bash git log -1 | grep -w '^commit' | cut -d ' ' -f2 | git show | grep -w '^index' | cut -d ' ' -f2 > tmp_out while read -r arg do

asdf errors when starting Linux shell

Sorry it's hard to be specific here but I'm struggling to pin down the source of various error messages in my Linux shell with asdf. I've got Fish shell 3.4.0 r

How to configure neovim with update-alternatives for ex view and vimdiff behaviours?

Of course, we could create aliases, but then we loose the Debian integration. For instance, the 3 first works, as they are just aliases, but the 3 last fails: N

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

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

Getting an error "cd: '/Users/x/Downloads/' is a rotten symlink" in Fish shell

Today I logged onto my machine and tried to cd ~/Downloads, but my shell (Fish) just returns the error cd: '/Users/x/Downloads/' is a rotten symlink without any

Case shell command not working in terminal

Trying to figure out operating system to run a command in my package. Found this : case "$OSTYPE" in solaris*) echo "SOLARIS" ;; darwin*) echo "OSX" ;;

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

Unmask data from matrix linux shell

i have 2 file. analizeddata.txt: A001->A002->A003->A004 A001->A005->A007 A022->A033 [...] and matrix.txt: A001|Scott A002|Bob A003|Mark A004|