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Change terminal characteristics System V tr: Text processing Mandatory Translate characters Version 4 AT&T UNIX true: Shell programming Mandatory Return true value Version 7 AT&T UNIX tsort: Text processing Mandatory Topological sort Version 7 AT&T UNIX tty: Misc Mandatory Return user's terminal name Version 1 AT&T UNIX type: Misc Optional (XSI)
The pcregrep command is an implementation of grep that uses Perl regular expression syntax. [17] Similar functionality can be invoked in the GNU version of grep with the -P flag. [18] Ports of grep (within Cygwin and GnuWin32, for example) also run under Microsoft Windows. Some versions of Windows feature the similar qgrep or findstr command. [19]
Computes and checks SHA-1/SHA-2 message digests shuf: generate random permutations sort: sort lines of text files split: Splits a file into pieces sum: Checksums and counts the blocks in a file tac: Concatenates and prints files in reverse order line by line tail: Outputs the last part of files tr: Translates or deletes characters tsort ...
Output of dmesg viewed with grep. The output of dmesg can amount to many complete screens. For this reason, this output is normally reviewed using standard text-manipulation tools such as more, tail, less or grep. [6] Size of the dmesg buffer is limited and the output is often captured in a permanent system logfile via a logging daemon, such as ...
In computing, findstr is a command in the command-line interpreters of Microsoft Windows [1] [2] and ReactOS. [3] It is used to search for a specific text string in computer files . [ 4 ]
One getty process serves one terminal. In some systems, for example, Solaris , getty was replaced by ttymon . Personal computers running Unix-like operating systems , even if they do not provide any remote login services, may still use getty as a means of logging in on a local virtual console .
For example, $ objdump -D -M intel file.bin | grep main.: -A20 This performs disassembly on the file «file.bin», with the assembly code shown in Intel syntax. We then redirect it to grep, which searches the main function and displays 20 lines of its code. Example output:
A pipeline of three program processes run on a text terminal In Unix-like computer operating systems , a pipeline is a mechanism for inter-process communication using message passing. A pipeline is a set of processes chained together by their standard streams , so that the output text of each process ( stdout ) is passed directly as input ...