Cut lines from a file in unix

Basically the cut command slices a line and extracts the text. It is necessary to specify option with command otherwise it gives error. If more than one file name is provided then data from each file is not precedes by its file name. Let us consider two files having name state. Options and their Description with examples:. Range of bytes can also be specified using the hyphen -. It is necessary to specify list of byte numbers otherwise it gives error.

Tabs and backspaces are treated like as a character of 1 byte. Show Threads. Show Posts. Registered User. Join Date: Jul Join Date: Feb Look into this.

Cheers Mate I got it : sed -n ',p ' file. Shell Programming and Scripting. Cut lines from and to in a textfile. Cut particular lines. All, I would like to cut all the lines from the log file for the timestamp. I'm not clear about how to apply grep ,awk here. You can specify a different delimiter for the input and output, however. So, if you want to run the previous command, but have the output delimited by a space, you could use the command:.

But what if you want the output to be delimited by a tab? Specifying a tab character on the command line is a bit more complicated, because it is an unprintable character. To specify it on the command line, you must "protect" it from the shell. Output the third character of every line of the file file. Output the first three characters of every line of the file file. Same as the above command. Output the first three characters of every line of file. Output the third through the last characters of each line of the file file.

Instead of Hello I have a PS1 variable so it's smth like [user hostname pwd] and the above code doesn't work — Olga. Here's a simple bash script that worked for me:!

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