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added the -n line number option to less/more

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Pat Beirne
2021-04-15 15:17:28 -04:00
parent 79adae017f
commit 2459d68bcb
2 changed files with 10 additions and 4 deletions
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2
README.md
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@@ -378,7 +378,7 @@ freq [160 | 80] # get/set the ESP8266 frequency
exec <python-filename> # execute a small python file exec <python-filename> # execute a small python file
free # display the heap size: used + free free # display the heap size: used + free
wc <filename> # display the line count, word count and bytes wc <filename> # display the line count, word count and bytes
less <filename> # similar to cat, but displays 30 lines at a time less/more [-n] <filename> # similar to cat, but displays 30 lines at a time
``` ```
Synonyms: `ip = ifconfig`, `more = less`, `dig = nslookup = host` Synonyms: `ip = ifconfig`, `more = less`, `dig = nslookup = host`

12
tf_extend.py
View File

@@ -11,11 +11,13 @@ class wc():
self.words += len(text.split()) self.words += len(text.split())
class lessor(): class lessor():
def __init__(self): def __init__(self,nums=False):
self.i=0 self.i=0
self.nums=nums
def write(self,text): def write(self,text):
if self.i==-1: return if self.i==-1: return
self.i += 1 self.i += 1
if self.nums: sys.stdout.write(str(self.i)+' ')
sys.stdout.write(text) sys.stdout.write(text)
if self.i%30==0: if self.i%30==0:
sys.stdout.write("====> press <enter> to see more, N or Q to quit <====\n") sys.stdout.write("====> press <enter> to see more, N or Q to quit <====\n")
@@ -33,10 +35,14 @@ def cmd(args):
return True return True
if cmd in ('wc','more','less'): if cmd in ('wc','more','less'):
nums=False
if cmd=='wc': if cmd=='wc':
w = wc() w = wc()
else: else:
w = lessor() if args[1]=='-n':
nums=True
del(args[1])
w = lessor(nums)
try: try:
tf.transfer(args[1],w) tf.transfer(args[1],w)
if cmd=='wc': if cmd=='wc':
@@ -95,7 +101,7 @@ def cmd(args):
print(" ifconfig/ip \t\thost/dig/nslookup <domain.name>") print(" ifconfig/ip \t\thost/dig/nslookup <domain.name>")
print(" freq [ 160 | 80 ] \t\texec <python-filename>") print(" freq [ 160 | 80 ] \t\texec <python-filename>")
print(" free \t\t\twc <filename>") print(" free \t\t\twc <filename>")
print(" less/more <filename>") print(" less/more [-n] <filename>")
else: # command not found else: # command not found
return False return False
return True return True