20 янв. 2011 г. · How to test if string exists in file with Bash? · To find all of the strings inside a file, you can run grep in FOR loop: unix.stackexchange.com ...

16 мая 2016 г. · You can use tr to squeeze the spaces and then use cut to take the second space delimited field: tr -s ' ' <idle_log.txt | cut -d' ' -f2.

15 сент. 2011 г. · I want to read a file and save it in variable, but I need to keep the variable and not just print out the file. How can I do this?

19 окт. 2014 г. · How to convert multiline file into a string in bash with newline character? · Read the file line by line and append the read data to a variable.

6 апр. 2021 г. · Simply, search for string /Encrypted string along with a condition to check if last field of that line has $ENC in it then last field for that line by using $ ...

2 июл. 2012 г. · if grep -q SomeString "$File"; then Some Actions # SomeString was found fi. You don't need [[ ]] here. Just run the command directly.

7 февр. 2022 г. · The immediate fix is to add quotes around the command substitution: my_program --message="$(cat test_message.json)"

28 мар. 2014 г. · echo adds newline character to the output file. If you don't want it use printf command it only writes the string to file and will not append newline character.

20 февр. 2011 г. · I need to read a file using a "Do/While" loop. How can I read the contents as a string? Here's my code: cat directory/scripts/tv2dbarray.txt | while read line ...

21 авг. 2019 г. · First you can printf or echo -e the required text and then cat the file query.sql after that. You can use && or ; between the commands .