1.0 tr The tr command is a filter which reads the standard input, translates or deletes characters and writes on its standard output. The tr command syntax is, tr [OPTION]… SET1 [SET2] tr transliterates characters from SET1 into corresponding characters of SET2 in input and writes resulting text on the standard output. For example, to …
1.0 comm The comm command compares two sorted files and gives output in three columns. The first column has lines which are present only in the first file. The second column contains lines which are present only in the second file. The third column gives the lines which are common to both files. For example, …
1.0 uniq The uniq command is a filter for finding unique lines in input. It reads input, suppresses duplicates and prints unique lines in its output. Used with the -D option, we can do the inverse and print the duplicate lines only. The input must be sorted for uniq to work correctly. For example, $ …
1.0 Sort The sort command is for sorting lines in text files. For example, if we have a file names, we can sort it with the sort command, $ cat names John Doe Jane Doe John Roe Richard Roe Tommy Atkins Max Mustermann Erika Mustermann Joe Bloggs $ $ sort names Erika Mustermann Jane Doe …
1.0 awk awk is a filter which takes the input and gives output after matching desired patterns and doing processing linked to matched patterns. awk is well suited for processing voluminous raw text data and producing statistical reports from it. awk is named after the first character of the names of its designers, Al Aho, …
1.0 sed sed is a stream editor that accepts a list of commands and input file names. It applies the commands one by one on each line of input and writes the resulting lines on the standard output. The commands are separated by newlines. 2.0 sed Command syntax sed [OPTIONS] ‘list-of-sed-commands’ [input-file] … sed is …
1.0 grep grep is a program for searching a given string pattern in files. It searches the files for the pattern and prints the lines that contain strings matching the pattern. For example, $ # grep pattern filenames … $ grep ‘hbox’ find.c GtkWidget *window, *scrolled_win, *hbox, *vbox, *find; hbox = gtk_hbox_new (FALSE, 5); gtk_box_pack_start …
1.0 Network Traffic Control Computer network traffic is the data moving across the network at a given time. Network bandwidth is the maximum amount of data that can be transmitted over the network in unit time. Computer networks face the possibility of network congestion, where excessive data is trying to pass through the network and …
Network Traffic Control with tc command in Linux Read More »
