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bash - SHELL Sorting output alphabetically - Stack Overflow If your the name of your script is foo and it writes to stdout a string such as a c d txt iso e z, you can get the sorted list by, for instance: sorted_output=$(foo|xargs -n 1|sort)
How do you process the output of a command in the shell line-by-line? Use read -r i to read lines without such modifications @Jens, no, it's the echo command eating spaces echo "line: $i" will prevent that @Jens, it's the act of clearing IFS in the best-practice invocation of IFS= read -r i that eliminates leading and trailing whitespace pruning
Get text output from shell script commands on screen while execution So, in nutshell, how do I get the output of current command being executed in shell simultaneous as if you were executed the command by itself? You can get the shell to echo everything it is doing, by running the following command: Or you can add this as the first command in the script: It can get a bit too verbose, though
How do I assign the output of a command into an array? To assign the output of a command to an array, you need to use a command substitution inside of an array assignment For a general command command this looks like: In the example of the OP, this would read: arr=($(grep -n "search term" file txt | sed 's : * ')) The inner $() runs the command while the outer () causes the output to be an array
How can I loop over the output of a shell command? I want to write a script that loops through the output (array possibly?) of a shell command, ps Here is the command and the output: $ ps -ewo pid,cmd,etime | grep python | grep -v grep | grep -v sh
How do I set a variable to the output of a command in Bash? In addition to backticks `command`, command substitution can be done with $(command) or "$(command)", which I find easier to read, and allows for nesting OUTPUT="$(ls -1)" echo "${OUTPUT}"
sorting - using sort command in shell scripting - Stack Overflow Run this code, which uses awk, sort, and paste Then out txt matches the expected output in your original post To see how it works, look at this: So you're getting the first column sorted, then the original columns in place Awk makes it easy to print out the columns (fields) you're interested in, ie, the first and third
How to list files in a specific order according to directory in bash? 1 Using the sort command: ls * * | sort -rst ' ' -k1,1 with: -t ' ' to change the field separator -r to do a reverse sort -s to ensure the sort is stable (in other words, it doesn't change order beyond the specified columns -k1,1 to restrict the sort to the first column