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grep is a command-line utility for searching plaintext datasets for lines that match a regular expression. Its name comes from the ed command g/re/p (global regular expression search and print), which has the same effect.
The name is a combination of semantic and grep, referring to semgrep being a text search command-line utility that is aware of source code semantics. [ 5 ] Services
He later added this capability to the Unix editor ed, which eventually led to the popular search tool grep's use of regular expressions ("grep" is a word derived from the command for regular expression searching in the ed editor: g/re/p meaning "Global search for Regular Expression and Print matching lines"). [15]
ldc.i4.6: Push 6 onto the stack as int32. Base instruction 0x1D ldc.i4.7: Push 7 onto the stack as int32. Base instruction 0x1E ldc.i4.8: Push 8 onto the stack as int32. Base instruction 0x15 ldc.i4.m1: Push -1 onto the stack as int32. Base instruction 0x15 ldc.i4.M1: Push -1 onto the stack as int32 (alias for ldc.i4.m1). Base instruction 0x1F
Numeric literals in Python are of the normal sort, e.g. 0, -1, 3.4, 3.5e-8. Python has arbitrary-length integers and automatically increases their storage size as necessary. Prior to Python 3, there were two kinds of integral numbers: traditional fixed size integers and "long" integers of arbitrary size.
A single command or the first of multiple commands appears on the same line with the global command. ... Also regular expression is clearly there too. For the command list suffix, we are using a single p command . The p command is documented as print ( . , . )p The print command prints the addressed lines. `.' is left at the last line printed.
pgrep is a command-line utility initially written for use with the Solaris 7 operating system by Mike Shapiro.It has since been available in illumos and reimplemented for the Linux and BSDs (DragonFly BSD, FreeBSD, NetBSD, and OpenBSD).
With various margins – usually from 1–1.5 inches (25–38 mm) for each side, but there is no strict standard – these numbers may shrink to 55–78 CPL. Typometer with the characters per line scales A Fortran coding form (paper). Source code has 72 CPL, but a form is 80-characters wide. Last 8 positions are "identification sequence"