Top "Cat" questions

bash cat multiple files content in to single string without newlines

i got some files with name start as eg_. and only each contains one single line eg_01.txt: @china:129.00 eg_02.…

bash file cat

curl: (3) Illegal characters found in URL

I want to bulk lookup ip details at ipinfo.io Here is my code. $ cat ips.txt | xargs -I% curl …

curl cat ip-geolocation

in R, can I stop print(cat("")) from returning NULL? and why does cat("foo") return foo>

If I enter print(cat("")) I get NULL I want to use cat() to print out the progress of an …

r concatenation paste cat

HP-UX - How can I read a text file from tar archive without extracting it?

I have a tar archive which contains several text files. I would like to write a script to display (stdout) …

bash text tar cat hp-ux

Preserving leading white space while reading>>writing a file line by line in bash

I am trying to loop through a directory of text files and combine them into one document. This works great, …

bash parsing text-files cat

Why am I getting "cat: write error: Broken pipe" rarely and not always

I am running some scripts with commands having cat pipelined with grep like: cat file.txt | grep "pattern" Most of …

linux bash grep cat broken-pipe

bash cat multiple files

I am trying to cat three files and obtain and insert a newline \n after each file ,I thought of …

linux bash shell cat

Fast concatenate multiple files on Linux

I am using Python multiprocessing to generate a temporary output file per process. They can be several GBs in size …

linux copy parallel-processing cat

How to make 'cat' in Linux to interpret control characters

Consider the following echo command: echo -e "at\r" which produces the output at on the command line, i.e. …

linux escaping echo cat

Bash script: save stream from Serial Port (/dev/ttyUSB0) to file until a specific input (e.g. eof) appears

I need a bash script to read the data stream from a Serial Port (RS232 to USB adapter - Port: /…

bash serial-port eof cat